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<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">EGEOL</journal-id>
<journal-title-group>
<journal-title>Estudios Geol&#x00F3;gicos</journal-title>
<abbrev-journal-title>Estud. Geol.</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">0367-0449</issn>
<publisher>
<publisher-name>Consejo Superior de Investigaciones Cientificas</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="publisher-id">EG201810</article-id>
<article-id pub-id-type="doi">10.3989/egeol.43158.492</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Articles</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>Macro-invert&#x00E9;br&#x00E9;s du C&#x00E9;nomanien du Djebel Metrassi (Batna, NE Alg&#x00E9;rie): Syst&#x00E9;matique et biostratigraphie</article-title>
<trans-title-group xml:lang="en">
<trans-title>Macro-invertebrates from the Cenomanian of Djebel Metrassi (Batna, NE Algeria): Systematics and biostratigraphy</trans-title>
</trans-title-group>
<alt-title alt-title-type="running-head">Macro-invert&#x00E9;br&#x00E9;s du C&#x00E9;nomanien du Djebel Metrassi (Batna, NE Alg&#x00E9;rie): Syst&#x00E9;matique et biostratigraphie</alt-title>
</title-group>
<contrib-group>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Aouissi</surname>
<given-names>R.</given-names>
</name>
<xref ref-type="aff" rid="aff0001">1</xref>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Salmi-Laouar</surname>
<given-names>S.</given-names>
</name>
<xref ref-type="aff" rid="aff0002">2</xref>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Ferr&#x00E9;</surname>
<given-names>B.</given-names>
</name>
<xref ref-type="aff" rid="aff0003">3</xref>
</contrib>
</contrib-group>
<aff id="aff0001"><label>1</label>Universit&#x00E9; Larbi Ben M&#x2019;hidi, Oum el Bouaghi, Laboratoire de Recherche de G&#x00E9;ologie (LRG), B.P. 12, 23000 Annaba, Alg&#x00E9;rie. Email: <email xlink:href="aouissi_riadh@hotmail.com">aouissi_riadh@hotmail.com</email> <ext-link ext-link-type="uri" xlink:href="https://orcid.org/0000-0003-2083-155X">https://orcid.org/0000-0003-2083-155X</ext-link></aff>
<aff id="aff0002"><label>2</label>Universit&#x00E9; Badji Mokhtar, Annaba, Laboratoire de Recherche de G&#x00E9;ologie (LRG), B.P. 12, 23000 Annaba, Alg&#x00E9;rie. Email: <email xlink:href="ssalmit@yahoo.fr">ssalmit@yahoo.fr</email> <ext-link ext-link-type="uri" xlink:href="https://orcid.org/0000-0002-4095-5851">https://orcid.org/0000-0002-4095-5851</ext-link></aff>
<aff id="aff0003"><label>3</label>Dame du Lac 213, 3 rue Henri Barbusse, F-76300 Sotteville-l&#x00E8;s-Rouen, France. Email: <email xlink:href="bruno_ferre@yahoo.fr">bruno_ferre@yahoo.fr</email> <ext-link ext-link-type="uri" xlink:href="https://orcid.org/0000-0001-5350-9407">https://orcid.org/0000-0001-5350-9407</ext-link></aff>
<pub-date pub-type="epub">
<day>31</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="collection">
<year>2018</year>
</pub-date>
<volume>74</volume>
<issue>2</issue>
<elocation-id>10.3989/egeol.43158.492</elocation-id>
<history>
<date date-type="received">
<day>27</day>
<month>02</month>
<year>2018</year>
</date>
<date date-type="accepted">
<day>13</day>
<month>09</month>
<year>2018</year>
</date>
<date date-type="Publicado on-line">
<day>22</day>
<month>11</month>
<year>2018</year>
</date>
</history>
<permissions>
<copyright-statement>&#x00A9; 2018 CSIC</copyright-statement>
<copyright-year>2018</copyright-year>
<license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/">
<license-p>Este es un art&#x00ED;culo de acceso abierto distribuido bajo los t&#x00E9;rminos de la licencia de uso y distribuci&#x00F3;n Creative Commons Reconocimiento 4.0 Internacional (CC BY 4.0)</license-p>
</license>
</permissions>
<abstract>
<title>R&#x00C9;SUM&#x00C9;</title>
<p>Un assemblage pal&#x00E9;ontologique a &#x00E9;t&#x00E9; r&#x00E9;colt&#x00E9; dans le C&#x00E9;nomanien du Djebel Metrassi (Batna, NE Alg&#x00E9;rie). Constitu&#x00E9; de 327 sp&#x00E9;cimens, il comporte un corail, 24 esp&#x00E8;ces de bivalves, 14 esp&#x00E8;ces de gast&#x00E9;ropodes, 3 esp&#x00E8;ces d&#x2019;ammonites et 7 esp&#x00E8;ces d&#x2019;&#x00E9;chinides. Cet assemblage permet d&#x2019;&#x00E9;tablir une liste syst&#x00E9;matique originale, avec des esp&#x00E8;ces in&#x00E9;dites, pour le C&#x00E9;nomanien de ce Djebel et vient soutenir le d&#x00E9;coupage lithostratigraphique propos&#x00E9;.</p>
</abstract>
<trans-abstract xml:lang="en">
<title>ABSTRACT</title>
<p>A rich paleontological assemblage was collected in the Cenomanian deposits of the Djebel Metrassi (Batna, NE Algeria). It consists of 327 specimens assigned respectively to a single coral, 24 bivalve, 14 gastropod, 3 ammonite, and 7 echinoid species. This macrofaunal association leads us to establish an original taxonomical reference list along with several species new for the Cenomanian of this area, and supports the lithostratigraphic framework herein proposed.</p>
</trans-abstract>
<kwd-group xml:lang="fr">
<title>Mots cl&#x00E9;s</title>
<kwd>Djebel Metrassi</kwd>
<kwd>Batna</kwd>
<kwd>Alg&#x00E9;rie</kwd>
<kwd>C&#x00E9;nomanien</kwd>
<kwd>macro-invert&#x00E9;br&#x00E9;s</kwd>
<kwd>syst&#x00E9;matique</kwd>
<kwd>biostratigraphie</kwd>
</kwd-group>
<kwd-group xml:lang="en">
<title>Keywords</title>
<kwd>Djebel Metrassi</kwd>
<kwd>Batna</kwd>
<kwd>Algeria</kwd>
<kwd>C&#x00E9;nomanian</kwd>
<kwd>Macro-invertebrates</kwd>
<kwd>Systematics</kwd>
<kwd>Biostratigraphy</kwd>
</kwd-group>
</article-meta>
</front>
<body>
<sec id="sec1" sec-type="intro">
<title>Introduction</title>
<p>Dans le Nord-Est alg&#x00E9;rien, les monts de Batna-Bellezma se situent dans la zone de convergence entre le domaine de l&#x2019;Atlas tellien au Nord et le domaine de l&#x2019;Atlas saharien au Sud (Bellion, <xref ref-type="bibr" rid="cit0033">1972</xref>). Limit&#x00E9;s au Nord-Ouest par les monts de Hodna (Guiraud, <xref ref-type="bibr" rid="cit0128">1973</xref>), ils h&#x00E9;ritent conjointement du pass&#x00E9; tectono-s&#x00E9;dimentaire de ces domaines, influenc&#x00E9; par la configuration pal&#x00E9;o-g&#x00E9;ographique de la marge m&#x00E9;ridionale de la T&#x00E9;thys. La macrofaune c&#x00E9;nomanienne (coraux, hu&#x00EE;tres exogyrines, rudistes, gast&#x00E9;ropodes, ammonites et &#x00E9;chinides) rencontr&#x00E9;e dans la r&#x00E9;gion de Batna est comparable &#x00E0; celle de l&#x2019;intervalle c&#x00E9;nomanien du Tell (Ficheur, <xref ref-type="bibr" rid="cit0104">1901</xref>), du Constantinois (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>, <xref ref-type="bibr" rid="cit0068">1880</xref>), du Hodna (Gla&#x00E7;on, <xref ref-type="bibr" rid="cit0119">1952</xref>; Chikhi-Aouimeur, <xref ref-type="bibr" rid="cit0056">2004</xref>), de l&#x2019;Atlas saharien (Benkherouf, 1987; Chikhi-Aouimeur, <xref ref-type="bibr" rid="cit0055">1998</xref>; Gill &#x0026; Chikhi, <xref ref-type="bibr" rid="cit0118">1991</xref>, Na&#x00EF;li <italic>et al</italic>., <xref ref-type="bibr" rid="cit0167">1995</xref>; Ruault-Djerrab, <xref ref-type="bibr" rid="cit0196">2012</xref>; Slami, <xref ref-type="bibr" rid="cit0208">2014</xref>; Benyoucef <italic>et al.</italic>, <xref ref-type="bibr" rid="cit0038">2017</xref>) et m&#x00EA;me &#x00E0; celle de la plateforme saharienne (Benyoucef <italic>et al.</italic>, <xref ref-type="bibr" rid="cit0035">2012</xref>, <xref ref-type="bibr" rid="cit0036">2015</xref>; Zaoui <italic>et al</italic>., <xref ref-type="bibr" rid="cit0235">2016</xref>).</p>
<p>La synth&#x00E8;se des &#x00E9;tudes sur les macro-invert&#x00E9;br&#x00E9;s de la m&#x00EA;me p&#x00E9;riode (depuis le Maroc: Lambert, <xref ref-type="bibr" rid="cit0149">1932</xref>; Petitot, <xref ref-type="bibr" rid="cit0183">1961</xref>; Freneix, <xref ref-type="bibr" rid="cit0113">1972</xref>; Meister &#x0026; Rhalmi, <xref ref-type="bibr" rid="cit0160">2002</xref>; Meister <italic>et al</italic>., <xref ref-type="bibr" rid="cit0038">2017</xref>; la Tunisie: Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0180">1907</xref>, <xref ref-type="bibr" rid="cit0181">1912</xref>; Zaghbib-Turki, <xref ref-type="bibr" rid="cit0232">1989</xref>; Meister &#x0026; Abdallah, <xref ref-type="bibr" rid="cit0161">2005</xref>; Kennedy &#x0026; Gale, <xref ref-type="bibr" rid="cit0134">2015</xref>; l&#x2019;&#x00C9;gypte: Abdel-Gawad &#x0026; Gameil, <xref ref-type="bibr" rid="cit0002">1995</xref>, <xref ref-type="bibr" rid="cit0003">2002</xref>; Abdel-Gawad <italic>et al</italic>., <xref ref-type="bibr" rid="cit0004">2004a</xref> , <xref ref-type="bibr" rid="cit0005">2004b</xref>; Gertsch <italic>et al</italic>., <xref ref-type="bibr" rid="cit0115">2008</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0024">2011</xref>; Ayoub-Hannaa <italic>et al</italic>., <xref ref-type="bibr" rid="cit0025">2014</xref>; Pandey <italic>et al</italic>., <xref ref-type="bibr" rid="cit0177">2011</xref>; jusqu&#x2019;en Jordanie: Ahmad &#x0026; Al-Hammad, <xref ref-type="bibr" rid="cit0012">2002</xref>; Aly <italic>et al</italic>., <xref ref-type="bibr" rid="cit0015">2008</xref>; &#x00D6;zer &#x0026; Ahmad, <xref ref-type="bibr" rid="cit0175">2016</xref>; et en Oman: Philip <italic>et al</italic>., <xref ref-type="bibr" rid="cit0184">1995</xref>) r&#x00E9;v&#x00E8;le d&#x2019;&#x00E9;troites similitudes avec les taxons r&#x00E9;colt&#x00E9;s dans la r&#x00E9;gion de Batna. L&#x2019;homog&#x00E9;n&#x00E9;it&#x00E9; de la faune c&#x00E9;nomanienne et sa large r&#x00E9;partition g&#x00E9;ographique sud-t&#x00E9;thysienne en font un marqueur &#x00E0; affinit&#x00E9; pal&#x00E9;o-biog&#x00E9;ographique permettant des corr&#x00E9;lations pr&#x00E9;cises pour les r&#x00E9;gions nord-africaines.</p>
<p>Ainsi, en domaine t&#x00E9;thysien, la pr&#x00E9;sence des ammonites <italic>Mantelliceras</italic> cf. <italic>dixoni</italic> et <italic>Mantelliceras cantianum</italic> marque le C&#x00E9;nomanien inf&#x00E9;rieur (Robaszynski <italic>et al</italic>., <xref ref-type="bibr" rid="cit0191">1993</xref>; Slami, <xref ref-type="bibr" rid="cit0208">2014</xref>). La vaste distribution g&#x00E9;ographique et l&#x2019;extension stratigraphique restreinte font d&#x2019;<italic>Aspidiscus cristatus</italic> un bon &#x00E9;l&#x00E9;ment de corr&#x00E9;lation pour les parties moyenne &#x00E0; sup&#x00E9;rieure du C&#x00E9;nomanien pour l&#x2019;ensemble du bassin m&#x00E9;diterran&#x00E9;en (Gill &#x0026; Lafuste, <xref ref-type="bibr" rid="cit0117">1987</xref>; Gill &#x0026; Chikhi, <xref ref-type="bibr" rid="cit0118">1991</xref>; Pandey <italic>et al</italic>., <xref ref-type="bibr" rid="cit0177">2011</xref>). L&#x2019;ammonite <italic>Neolobites vibrayeanus</italic> montre une nette tendance &#x00E0; l&#x2019;end&#x00E9;misme en Afrique du Nord et au Moyen-Orient. Elle est &#x00E9;galement tr&#x00E8;s commune vers la base du C&#x00E9;nomanien sup&#x00E9;rieur ib&#x00E9;rique (Meister &#x0026; Rhalmi, <xref ref-type="bibr" rid="cit0160">2002</xref>; Meister &#x0026; Abdallah, <xref ref-type="bibr" rid="cit0161">2005</xref>; Wiese &#x0026; Schulze, <xref ref-type="bibr" rid="cit0226">2005</xref>; Aly <italic>et al</italic>., <xref ref-type="bibr" rid="cit0015">2008</xref>; Gertsch <italic>et al</italic>., <xref ref-type="bibr" rid="cit0115">2008</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>, <xref ref-type="bibr" rid="cit0038">2017</xref>) et permet de pr&#x00E9;ciser la subdivision de l&#x2019;&#x00E9;tage. Les hu&#x00EE;tres exogyrines sont typiques des d&#x00E9;p&#x00F4;ts c&#x00E9;nomaniens sud-t&#x00E9;thysiens (au Maroc: Freneix, <xref ref-type="bibr" rid="cit0113">1972</xref>; en Alg&#x00E9;rie: COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>; Busson <italic>et al</italic>., <xref ref-type="bibr" rid="cit0051">1999</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>; en Tunisie: Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>; en Libye: Rossi-Ronchetti &#x0026; Albanesi, <xref ref-type="bibr" rid="cit0195">1961</xref>; et en &#x00C9;gypte: Gertsch <italic>et al</italic>., <xref ref-type="bibr" rid="cit0115">2008</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0024">2011</xref>; Ayoub-Hannaa <italic>et al</italic>., <xref ref-type="bibr" rid="cit0025">2014</xref>; et Jordanie: Schulze <italic>et al</italic>., <xref ref-type="bibr" rid="cit0202">2005</xref>) caract&#x00E9;ristiques de mer peu profonde (Dhondt &#x0026; Jaillard, <xref ref-type="bibr" rid="cit0085">2005</xref>). Un assemblage de rudistes (caprinules) est signal&#x00E9; au Maghreb (Chikhi-Aouimeur <italic>et al</italic>., <xref ref-type="bibr" rid="cit0057">2006</xref>), en Alg&#x00E9;rie (Chikhi-Aouimeur, <xref ref-type="bibr" rid="cit0054">1995</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>), en &#x00C9;gypte (Aly <italic>et al</italic>., <xref ref-type="bibr" rid="cit0014">2005</xref>) et en Jordanie (&#x00D6;zer &#x0026; Ahmad, <xref ref-type="bibr" rid="cit0175">2016</xref>). Il permet d&#x2019;attribuer un &#x00E2;ge c&#x00E9;nomanien sup&#x00E9;rieur &#x00E0; ces d&#x00E9;p&#x00F4;ts.</p>
<p>Les &#x00E9;tudes sur le C&#x00E9;nomanien de la r&#x00E9;gion de Batna sont rares et se limitent &#x00E0; des descriptions lithologiques g&#x00E9;n&#x00E9;rales (Savornin, <xref ref-type="bibr" rid="cit0199">1931</xref>; Bellion, <xref ref-type="bibr" rid="cit0033">1972</xref>; Vivi&#x00E8;re, <xref ref-type="bibr" rid="cit0222">1985</xref>; Yahiaoui, <xref ref-type="bibr" rid="cit0231">1990</xref>), parfois structurales (Bureau, <xref ref-type="bibr" rid="cit0047">1967</xref>, <xref ref-type="bibr" rid="cit0048">1975</xref>, <xref ref-type="bibr" rid="cit0049">1986</xref>; Vila, <xref ref-type="bibr" rid="cit0221">1980</xref>), accompagn&#x00E9;es d&#x2019;un recensement pal&#x00E9;ontologique parfois sommaire (Laffitte, <xref ref-type="bibr" rid="cit0143">1939</xref>; Bellion, <xref ref-type="bibr" rid="cit0033">1972</xref>; Benkherouf, <xref ref-type="bibr" rid="cit0032">1988</xref>; Slami, <xref ref-type="bibr" rid="cit0208">2014</xref>; Slami <italic>et al</italic>., <xref ref-type="bibr" rid="cit0207">2018</xref>). Malgr&#x00E9; ces &#x00E9;tudes, les monts de Bellezma-Batna restent mal connus sur le plan pal&#x00E9;ontologique. Afin de mieux conna&#x00EE;tre le C&#x00E9;nomanien de la r&#x00E9;gion de Batna, en particulier aux alentours de Metrassi, plusieurs r&#x00E9;coltes syst&#x00E9;matiques ont &#x00E9;t&#x00E9; r&#x00E9;alis&#x00E9;es. Ainsi, un assemblage repr&#x00E9;sentatif de la macrofaune d&#x2019;invert&#x00E9;br&#x00E9;s, compos&#x00E9; essentiellement de coraux, de bivalves, de gast&#x00E9;ropodes, d&#x2019;ammonites et d&#x2019;&#x00E9;chinides, est r&#x00E9;uni et identifi&#x00E9; pour la premi&#x00E8;re fois. La pr&#x00E9;sente &#x00E9;tude vise &#x00E0; &#x00E9;tablir une premi&#x00E8;re liste taxonomique et &#x00E0; pr&#x00E9;ciser le cadre stratigraphique de cette macrofaune.</p>
</sec>
<sec id="sec2">
<title>Cadre g&#x00E9;ologique</title>
<p>Situ&#x00E9;e au Nord-Est de l&#x2019;Alg&#x00E9;rie, la r&#x00E9;gion de Batna appartient aux monts de Bellezma-Batna (<xref ref-type="fig" rid="f0001">Fig. 1</xref>). Cette cha&#x00EE;ne de montagnes correspond &#x00E0; un alignement NE-SO de reliefs, s&#x2019;&#x00E9;tendant de la ville de Batna &#x00E0; l&#x2019;Est jusqu&#x2019;au village de Sefiane &#x00E0; l&#x2019;Ouest. Elle est form&#x00E9;e de terrains essentiellement m&#x00E9;sozo&#x00EF;ques o&#x00F9; le Cr&#x00E9;tac&#x00E9; sup&#x00E9;rieur affleure sur de vastes &#x00E9;tendues (<xref ref-type="fig" rid="f0002">Fig. 2</xref>); il est marqu&#x00E9; par une richesse en macrofaune bien conserv&#x00E9;e, surtout dans des niveaux de faci&#x00E8;s marins et carbonat&#x00E9;s.</p>
<fig id="f0001">
<label>Fig. 1</label>
<caption><p>Localisation des monts de Bellezma-Batna au sein des grands ensembles g&#x00E9;ologiques de l&#x2019;Alg&#x00E9;rie orientale (Herkat, <xref ref-type="bibr" rid="cit0131">2007</xref>).</p></caption>
<graphic xlink:href="EG201810-82-g001.tif" xmlns:xlink="http://www.w3.org/1999/xlink"/>
</fig>
<fig id="f0002">
<label>Fig. 2</label>
<caption><p>Carte g&#x00E9;ologique simplifi&#x00E9;e montrant les formations du Cr&#x00E9;tac&#x00E9; de Metrassi (carte de Merouana 1/50 000).</p></caption>
<graphic xlink:href="EG201810-82-g002.tif" xmlns:xlink="http://www.w3.org/1999/xlink"/>
</fig>
<p>Le Djebel Metrassi, objet de cette &#x00E9;tude, est situ&#x00E9; sur le versant septentrional de l&#x2019;ensemble nord-est de cette cha&#x00EE;ne (cf. <xref ref-type="fig" rid="f0002">Fig. 2</xref>) et culmin&#x00E9; &#x00E0; 1334 m. Il pr&#x00E9;sente une structure anticlinale dissym&#x00E9;trique de direction N40&#x00B0; o&#x00F9; le flanc sud montre un redressement plus prononc&#x00E9;. Cette structure, affect&#x00E9;e par un syst&#x00E8;me de failles de directions NO-SE, NE-SO et E-O, h&#x00E9;rite des phases tectoniques atlasique et alpine bien connues dans le NE alg&#x00E9;rien (Dubourdieu &#x0026; Durozoy, <xref ref-type="bibr" rid="cit0095">1950</xref>; Bellion, <xref ref-type="bibr" rid="cit0033">1972</xref>; Vila, <xref ref-type="bibr" rid="cit0221">1980</xref>; Kazi-Tani, <xref ref-type="bibr" rid="cit0133">1986</xref>).</p>
</sec>
<sec id="sec3">
<title>Description lithologique</title>
<p>L&#x2019;&#x00E9;tude lithostratigraphique du C&#x00E9;nomanien du Djebel Metrassi porte sur une formation lithologique d&#x2019;extension r&#x00E9;gionale, &#x00E9;paisse d&#x2019;environ 260 m, appel&#x00E9;e &#x2018;Marnes de Smail&#x2019; (Yahiaoui, <xref ref-type="bibr" rid="cit0231">1990</xref>). Cette formation est subdivis&#x00E9;e en quatre unit&#x00E9;s (<xref ref-type="fig" rid="f0003">Fig. 3</xref>):</p>
<fig id="f0003">
<label>Fig. 3</label>
<caption><p>Coupe lithostratigraphique de Metrassi.</p></caption>
<graphic xlink:href="EG201810-82-g003.tif" xmlns:xlink="http://www.w3.org/1999/xlink"/>
</fig>
<sec id="sec3.1">
<title>Unit&#x00E9; A: Marnes &#x00E0; ammonites et exogyres</title>
<p>Cette unit&#x00E9; d&#x00E9;bute par une vire de marnes argileuses de plus de 100 m d&#x2019;&#x00E9;paisseur, de couleur verd&#x00E2;tre &#x00E0; gris&#x00E2;tre, parfois sombres. Ces marnes sont riches en fissures millim&#x00E9;triques remplies de gypse lamellaire d&#x2019;origine syndiag&#x00E9;n&#x00E9;tique. Elles renferment une riche macrofaune d&#x2019;invert&#x00E9;br&#x00E9;s domin&#x00E9;e par des bivalves (<italic>Nucula margaritifera, Pinna</italic> sp<italic>., Exogyra conica, Costagyra olisiponensis, Ceratostreon flabellatum, Rhynchostreon suborbiculatum, Plicatula auressensis</italic>, <italic>Plicatula</italic> sp., <italic>Neithea coquandi</italic>, <italic>Pterotrigonia scabra, Clisocolus corrugatus, Granocardium carolinum</italic>), des gast&#x00E9;ropodes (<italic>Turritella difficilis, Campanile ganesha, Cimolithium tenouklense, Aporrhais dutrugei</italic>, <italic>Pterodonta elongata, Tylostoma globosum,</italic> et <italic>Avellana cassis</italic>), des ammonites (<italic>Sharpeiceras laticlavium</italic>) et des &#x00E9;chinides (<italic>Heterodiadema libycum, Hemiaster gabrielis, H. pseudofourneli, H. batnensis</italic>). Ces marnes sont surmont&#x00E9;es par une alternance de bancs calcaires jaun&#x00E2;tres &#x00E0; texture <italic>packstone</italic> et de marnes gris&#x00E2;tres, d&#x2019;une dizaine de m&#x00E8;tres d&#x2019;&#x00E9;paisseur. Ces niveaux sont riches en &#x00E9;chinides en bon &#x00E9;tat de pr&#x00E9;servation (<italic>Hemiaster gabrielis</italic>) et en bivalves (<italic>Ceratostreon flabellatum</italic>)<italic>.</italic> La limite sup&#x00E9;rieure de cette succession est une surface ferruginis&#x00E9;e.</p>
<p>Les d&#x00E9;p&#x00F4;ts homog&#x00E8;nes de cette unit&#x00E9; d&#x00E9;montrent un milieu stable plus ou moins ouvert et profond, &#x00E0; fond vaseux, situ&#x00E9; &#x00E0; la partie distale de la plate-forme. La biodiversit&#x00E9; &#x00E9;lev&#x00E9;e sugg&#x00E8;re plusieurs causes, notamment la richesse du milieu en &#x00E9;l&#x00E9;ments nutritifs, ou des substrats stables et bien oxyg&#x00E9;n&#x00E9;s, situ&#x00E9;s dans la zone photique ou sous la limite d&#x2019;action des vagues.</p>
</sec>
<sec id="sec3.2">
<title>Unit&#x00E9; B: Marnes &#x00E0; Aspidiscus cristatus</title>
<p>Elle forme une vire marneuse, &#x00E9;paisse de plus de 50 m, tr&#x00E8;s riche en corail attribu&#x00E9; &#x00E0; <italic>Aspidiscus cristatus.</italic> Cette esp&#x00E8;ce marque le C&#x00E9;nomanien moyen &#x00E0; sup&#x00E9;rieur (Pomel, 1972; Gill &#x0026; Lafuste, <xref ref-type="bibr" rid="cit0117">1987</xref>; Gill &#x0026; Chikhi, <xref ref-type="bibr" rid="cit0118">1991</xref>; Pandey <italic>et al</italic>., <xref ref-type="bibr" rid="cit0177">2011</xref>). Elle est associ&#x00E9;e &#x00E0; l&#x2019;ammonite <italic>Acanthoceras rhotomagense,</italic> aux bivalves (<italic>Exogyra conica, Costagyra olisiponensis, Ceratostreon flabellatum, Rhynchostreon suborbiculatum, Plicatula auressensis, Eoradiolites liratus, Tenea delettrei</italic>), aux gast&#x00E9;ropodes (<italic>Cimolithium tenouklense, Pterodonta deffisi, Nerinea texana</italic>) et aux &#x00E9;chinides (<italic>Hemiaster gabrielis</italic>). La morphologie externe de ce polypier et son abondance indiquent un environnement peu profond, de faible &#x00E9;nergie, &#x00E0; taux de s&#x00E9;dimentation &#x00E9;lev&#x00E9; et &#x00E0; substrat vaseux (Gill &#x0026; Chikhi, <xref ref-type="bibr" rid="cit0118">1991</xref>). Les derniers termes de cette unit&#x00E9; sont plus calcaires. Ils pr&#x00E9;sentent un banc calcaire d&#x2019;environ 4 m d&#x2019;&#x00E9;paisseur, dont la limite sup&#x00E9;rieure est marqu&#x00E9;e par une surface durcie.</p>
</sec>
<sec id="sec3.3">
<title>Unit&#x00E9; C: Marnes &#x00E0; Neolobites vibrayeanus</title>
<p>Elle est compos&#x00E9;e essentiellement de marnes gris&#x00E2;tres sur plus de 70 m d&#x2019;&#x00E9;paisseur. &#x00C0; la base, ces marnes friables livrent des rudistes (<italic>Sphaerulites depressus, Eoradiolites liratus, Radiolites sauvagesi</italic>) et d&#x2019;autres bivalves (<italic>Granocardium carolinum, G. desvauxi, G. productum</italic>). Dans leur partie m&#x00E9;diane, elles comportent un banc calcaire m&#x00E9;trique, de couleur jaun&#x00E2;tre, br&#x00E9;chifi&#x00E9; &#x00E0; la base et stratifi&#x00E9; au sommet. Ce calcaire est arm&#x00E9; d&#x2019;un biostrome de rudistes. Il est de texture <italic>packstone</italic>, &#x00E0; milioles et cun&#x00E9;olines, et montre des traces d&#x2019;oxydation. Les marnes sommitales livrent une faune assez diversifi&#x00E9;e, avec des bivalves (<italic>Exogyra conica, Costagyra olisiponensis, Ceratostreon flabellatum, Ilymatogyra africana, Rhynchostreon suborbiculatum, Rastellum carinatum, Neithea dutrugei, Clisocolus corrugatus, Venericardia forgemoli, Granocarduim carolinum, G. desvauxi, Tenea delettrei&#x2009;</italic>), des gast&#x00E9;ropodes (<italic>Campanile ganesha</italic>, <italic>Cimolithium tenouklense</italic>, <italic>Ampullina abeihensis</italic>, <italic>Columbellina fusiformis, Tylostoma pallaryi&#x2009;</italic>), des ammonites (<italic>Neolobites vibrayeanus</italic>), et des &#x00E9;chinides (<italic>Heterodiadema libycum, Coenholectypus excisus, Hemiaster gabrielis</italic>). Cette unit&#x00E9; t&#x00E9;moigne d&#x2019;une transgression sur un milieu marin peu profond.</p>
</sec>
<sec id="sec3.4">
<title>Unit&#x00E9; D: Calcaire &#x00E0; Caprinules</title>
<p>Cette unit&#x00E9; se compose d&#x2019;une barre calcaire &#x00E0; rudistes de 20 m d&#x2019;&#x00E9;paisseur, marquant ainsi les derniers termes du C&#x00E9;nomanien sup&#x00E9;rieur. Les rudistes sont le plus souvent en bon &#x00E9;tat de conservation et d&#x2019;une taille moyenne de 10 cm. Ils sont attribu&#x00E9;s au genre <italic>Caprinula</italic>. Certains sp&#x00E9;cimens laissent distinguer une petite cavit&#x00E9; accessoire post&#x00E9;rieure, permettant leur attribution &#x00E0; <italic>Caprinula boissyi</italic>. Ces d&#x00E9;p&#x00F4;ts traduisent un milieu de plate-forme, des eaux chaudes, moins profondes et mod&#x00E9;r&#x00E9;ment agit&#x00E9;es (Chicki-Aouimeur, <xref ref-type="bibr" rid="cit0054">1995</xref>; Buchbinder <italic>et al</italic>., <xref ref-type="bibr" rid="cit0052">2000</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>).</p>
</sec>
</sec>
<sec id="sec4">
<title>Mat&#x00E9;riel &#x00E9;tudi&#x00E9;</title>
<p>327 sp&#x00E9;cimens furent r&#x00E9;colt&#x00E9;s, par les auteurs, dans la succession c&#x00E9;nomanienne de Djebel Metrassi. Ces sp&#x00E9;cimens ont &#x00E9;t&#x00E9; nettoy&#x00E9;s, d&#x00E9;crits et mesur&#x00E9;s afin de clarifier leurs identification et attribution taxonomiques. Les abr&#x00E9;viations des mesures suivantes ont &#x00E9;t&#x00E9; adopt&#x00E9;es: H: hauteur; L: longueur; D: diam&#x00E8;tre maximal; HL: hauteur de la derni&#x00E8;re spirale; HA: hauteur de l&#x2019;ouverture; WA: largeur de l&#x2019;ouverture; PA : angle pleural en degr&#x00E9;s; Nw: nombre de spirales.</p>
</sec>
<sec id="sec5">
<title>Biostratigraphie</title>
<p>La distribution stratigraphique des macro-invert&#x00E9;br&#x00E9;s identifi&#x00E9;s a permis d&#x2019;affiner le cadre biostratigraphique de la Formation des Marnes de Smail (<xref ref-type="fig" rid="t0001">Tableau 1</xref>):</p>
<fig id="t0001">
<label>Tableau 1</label>
<caption><p>D&#x00E9;coupage biostratigraphique des d&#x00E9;p&#x00F4;ts de Metrassi.</p></caption>
<graphic xlink:href="EG201810-82-g008.tif" xmlns:xlink="http://www.w3.org/1999/xlink"/>
</fig>
<list list-type="bullet">
<list-item>
<p>La pr&#x00E9;sence de <italic>Sharpeiceras laticlavium</italic>, associ&#x00E9;e &#x00E0; <italic>Ceratostreon flabellatum</italic> et <italic>Rhynchostreon suborbiculatum</italic>, dans la partie inf&#x00E9;rieure de la formation (Unit&#x00E9; A) lui attribue un &#x00E2;ge C&#x00E9;nomanien inf&#x00E9;rieur. Cette unit&#x00E9; correspondrait au niveau &#x00E0; <italic>Mantelliceras mantelli</italic> standard (Robaszynski <italic>et al</italic>., <xref ref-type="bibr" rid="cit0191">1993</xref>) notamment celui d&#x2019;&#x00C9;gypte (Abdel-Gawad <italic>et al</italic>., <xref ref-type="bibr" rid="cit0006">2007</xref>).</p>
</list-item>
<list-item>
<p>L&#x2019;occurrence d<italic>&#x2019;Aspidiscus cristatus</italic>, associ&#x00E9;e &#x00E0; <italic>Acanthoceras rhotomagense,</italic> attribue la partie moyenne de la m&#x00EA;me formation (Unit&#x00E9; B) au C&#x00E9;nomanien moyen. Il s&#x2019;agit de la m&#x00EA;me zone &#x00E0; <italic>Ceratostreon flabellatum</italic> et de la zone &#x00E0; <italic>Rhynchostreon mermeti</italic> (Abdel-Gawad <italic>et al</italic>., <xref ref-type="bibr" rid="cit0004">2004a</xref>, <xref ref-type="bibr" rid="cit0005">b</xref>), ainsi que la zone &#x00E0; <italic>Hemiaster cubicus</italic> (Kora <italic>et al</italic>.,<xref ref-type="bibr" rid="cit0141">2001</xref>; Abdel-Gawad <italic>et al</italic>., <xref ref-type="bibr" rid="cit0006">2007</xref>) en &#x00C9;gypte.</p>
</list-item>
<list-item>
<p>La d&#x00E9;couverte de <italic>Neolobites vibrayeanus</italic> dans l&#x2019;unit&#x00E9; C de la Formation des Marnes de Smail permet de lui assigner la base du C&#x00E9;nomanien sup&#x00E9;rieur. Le niveau pr&#x00E9;-<italic>Neolobites</italic> est marqu&#x00E9; par la pr&#x00E9;sence de <italic>Radiolites sauvagesi</italic>. Cette unit&#x00E9; serait l&#x2019;&#x00E9;quivalent de la zone d&#x2019;ammonite standard &#x00E0; <italic>Calycoceras guerangeri</italic> (Robaszynski <italic>et al</italic>., <xref ref-type="bibr" rid="cit0191">1993</xref>). Elle l&#x2019;est aussi pour la zone &#x00E0; <italic>Costagyra olisiponensis</italic> et <italic>Ilymatogyra africana</italic> (Abdel-Gawad <italic>et al</italic>., <xref ref-type="bibr" rid="cit0006">2007</xref>) et celle &#x00E0; <italic>Costagyra olisiponensis</italic> (Ayoub-Hanna, <xref ref-type="bibr" rid="cit0024">2011</xref>) en &#x00C9;gypte.</p>
</list-item>
<list-item>
<p>La derni&#x00E8;re unit&#x00E9; (D) de la Formation des Marnes de Smail co&#x00EF;ncide avec la barre calcaire &#x00E0; <italic>Caprinula boissyi.</italic> Ce rudiste permet de lui attribuer un &#x00E2;ge C&#x00E9;nomanien sup&#x00E9;rieur, comparable aux niveaux &#x00E0; caprinules de la Formation des &#x00AB;Calcaires de Sidi Mohamed Ben Bouziane&#x00BB; (Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>
<italic>).</italic> Elle est aussi comparable aux sites &#x00E9;quivalents de la T&#x00E9;thys occidentale (Chikhi-Aouimeur <italic>et al</italic>., <xref ref-type="bibr" rid="cit0057">2006</xref>). Cette unit&#x00E9; correspondrait &#x00E0; la zone d&#x2019;ammonite &#x00E0; <italic>Metoicoceras geslinianum</italic> (Robaszynski <italic>et al</italic>., <xref ref-type="bibr" rid="cit0191">1993</xref>).</p>
</list-item>
</list>
</sec>
<sec id="sec6">
<title>Syst&#x00E9;matique</title>
<sec id="sec6.1">
<title>Corail</title>
<p>Ordre: Microsolenina MORYCOWA &#x0026; RONIEWICZ, <xref ref-type="bibr" rid="cit0166">1995</xref>
</p>
<p>Famille: Latomeandridae ALLOITEAU, <xref ref-type="bibr" rid="cit0016">1952</xref>
</p>
<p>Genre: <italic>Aspidiscus</italic>
K&#x00D6;NIG, <xref ref-type="bibr" rid="cit0140">1825</xref>
</p>
<p>Esp&#x00E8;ce: <bold><italic>Aspidiscus cristatus</italic></bold> (LAMARCK, <xref ref-type="bibr" rid="cit0146">1801</xref>)</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.1</xref></p>
<fig id="f0004">
<label>Fig. 4</label>
<caption><p>1. <italic>Aspidiscus cristatus</italic> (LAMARCK, <xref ref-type="bibr" rid="cit0146">1801</xref>) de l&#x2019;unit&#x00E9; B: 1a- face sup&#x00E9;rieure, 1b- face inf&#x00E9;rieure. 2. <italic>Nucula margaritifera</italic> (DOUVILL&#x00C9;, <xref ref-type="bibr" rid="cit0093">1916</xref>) de l&#x2019;unit&#x00E9; A: 2a- Valve gauche, 2b- valve droite. 3. <italic>Pinna</italic> sp. de l&#x2019;unit&#x00E9; A. 4. <italic>Exogyra conica</italic> (SOWERBY, 1813) de l&#x2019;unit&#x00E9; A. 4a- valve gauche, 4b- Valve droite. 5. <italic>Costagyra olisiponensis</italic> (SHARPE, <xref ref-type="bibr" rid="cit0205">1850</xref>) de l&#x2019;unit&#x00E9; A: 5a- valve gauche, 5b- valve droite. 6. <italic>Ceratostreon flabellatum</italic> (GOLDFUSS, <xref ref-type="bibr" rid="cit0120">1833</xref>) de l&#x2019;unit&#x00E9; A: 6a- valve gauche, 6b- valve droite. 7. <italic>Ilymatogyra africana</italic> (LAMARCK, <xref ref-type="bibr" rid="cit0146">1801</xref>) de l&#x2019;unit&#x00E9; C: 7a- valve gauche, 7b- valve droite. 8. <italic>Rhynchostreon suborbiculatum</italic> (LAMARCK, <xref ref-type="bibr" rid="cit0146">1801</xref>) de l&#x2019;unit&#x00E9; A: 8a- valve gauche, 8b- valve droite, 8c- vue frontale. 9. <italic>Rastellum carinatum</italic> (LAMARCK, <xref ref-type="bibr" rid="cit0144">1806</xref>) de l&#x2019;unit&#x00E9; C. 10. <italic>Plicatula auressensis</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) de l&#x2019;unit&#x00E9; A. 11. <italic>Plicatula</italic> sp. de l&#x2019;unit&#x00E9; A. 12. <italic>Neithea coquandi</italic> (P&#x00C9;RON, <xref ref-type="bibr" rid="cit0178">1877</xref>) de l&#x2019;unit&#x00E9; A. 13. <italic>Neithea dutrugei</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) de l&#x2019;unit&#x00E9; C. (chaque barre correspond &#x00E0; 1 cm).</p></caption>
<graphic xlink:href="EG201810-82-g004.tif" xmlns:xlink="http://www.w3.org/1999/xlink"/>
</fig>
<p>1801 <italic>Cyclolites cristata</italic> sp. nov. LAMARCK, p. 369.</p>
<p>1914 <italic>Aspidiscus cristatus</italic> LAMARCK &#x2013; FELIX, p. 107. (liste synonymique).</p>
<p>1930 <italic>Aspidiscus cristatus</italic> LAMARCK &#x2013; RENZ, p. 8, pl. 2, fig. 1.</p>
<p>1952 <italic>Aspidiscus cristatus</italic> LAMARCK &#x2013; ALLOITEAU, p. 663, pl. 9, fig. 12.</p>
<p>1957 <italic>Aspidiscus cristatus</italic> LAMARCK &#x2013; THOMAS &#x0026; OMARA, p. 152, pls. 4-5.</p>
<p>1987 <italic>Aspidiscus cristatus</italic> LAMARCK &#x2013; GILL &#x0026; LAFUSTE, p. 926, pl. 1, figs. 1-9 (non. fig. 10), 11-14; pl. 2, figs. 1-10; text-figs. 1-3a, 5.</p>
<p>1991 <italic>Aspidiscus cristatus</italic> LAMARCK &#x2013; GILL &#x0026; CHIKHI, p. 349, figs. 1-2.</p>
<p>2002 <italic>Aspidiscus cristatus</italic> LAMARCK &#x2013; BARON-SZABO, p. 144, text-fig. 53A.</p>
<p>2011 <italic>Aspidiscus cristatus</italic> LAMARCK &#x2013; AYOUB-HANNAA <italic>et al</italic>., p. 294, text-fig. 5.8. J.</p>
<p>2011 <italic>Aspidiscus cristatus</italic> LAMARCK &#x2013; PANDEY <italic>et al</italic>., p. 30, pl. 1, figs. 1-6.</p>
<p><bold>Description:</bold> Polypier &#x00E0; surfaces inf&#x00E9;rieure concave et sup&#x00E9;rieure convexe, de contour circulaire hydnophoro&#x00EF;de. Couronne p&#x00E9;riph&#x00E9;rique distincte, couverte de septes qui s&#x2019;&#x00E9;tendent jusqu&#x2019;&#x00E0; la marge en angle droit. Ils continuent sous forme de c&#x00F4;tes &#x00E9;troites au-dessus de la surface inf&#x00E9;rieure.</p>
<p><bold>Discussion:</bold> Le rapport cr&#x00EA;te-monticule est souvent utilis&#x00E9; comme caract&#x00E8;re discriminant entre les diff&#x00E9;rentes esp&#x00E8;ces du genre <italic>Aspidiscus</italic>. <italic>Aspidiscus cristatus</italic> (LAMARCK) est domin&#x00E9; par des cr&#x00EA;tes dont la m&#x00E9;diane, plus longue, divise le d&#x00F4;me central &#x00E0; parts &#x00E9;gales, avec quelques monticules. Par cons&#x00E9;quent, <italic>Aspidiscus felixi</italic> (RENZ, <xref ref-type="bibr" rid="cit0189">1930</xref>) est d&#x00E9;pourvu de cr&#x00EA;tes et pr&#x00E9;sente des monticules emball&#x00E9;s en masse. Chez <italic>Aspidiscus franchii</italic> (ZUFFARDI-COMERCI, 1921), quelques cr&#x00EA;tes courtes et plusieurs monticules dispers&#x00E9;s sont moins nombreux que chez <italic>Aspidiscus montgrinensis</italic> (SOL&#x00C9;, 1937).</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien moyen &#x00E0; sup&#x00E9;rieur: Espagne (Baron-Szabo, <xref ref-type="bibr" rid="cit0030">2002</xref>), Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>; Gill &#x0026; Chikhi, <xref ref-type="bibr" rid="cit0118">1991</xref>), Tunisie (Alloiteau, <xref ref-type="bibr" rid="cit0016">1952</xref>), &#x00C9;gypte (Thomas &#x0026; Omara, <xref ref-type="bibr" rid="cit0218">1957</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Pandey <italic>et al</italic>., <xref ref-type="bibr" rid="cit0177">2011</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 20 sp&#x00E9;cimens collect&#x00E9;s dans l&#x2019;unit&#x00E9; B.</p>
</sec>
<sec id="sec6.2">
<title>Bivalves</title>
<p>La classification syst&#x00E9;matique utilis&#x00E9;e est celle &#x00E9;tablie par Amler <italic>et al</italic>. (<xref ref-type="bibr" rid="cit0020">2000</xref>). L et H repr&#x00E9;sentent respectivement les mesures des largeur et hauteur des coquilles, d&#x00E9;termin&#x00E9;es en (mm).</p>
<p>Ordre: Nuculoida DALL, <xref ref-type="bibr" rid="cit0074">1889</xref></p>
<p>Famille: Nuculidae GRAY, <xref ref-type="bibr" rid="cit0121">1824</xref></p>
<p>Genre: <italic>Nucula</italic>
LAMARCK, <xref ref-type="bibr" rid="cit0145">1799</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Nucula margaritifera</italic></bold> (DOUVILL&#x00C9;, <xref ref-type="bibr" rid="cit0093">1916</xref>)</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.2</xref>.</p>
<p>1916 <italic>Nucula margaritifera</italic> sp. nov. DOUVILL&#x00C9;, p. 177, pl. 21, figs. 19-21.</p>
<p>1963 <italic>Nucula awadensis</italic> sp. nov. FAWZI, p. 19, pl. 1, figs. 8-10.</p>
<p>2002 <italic>Nucula</italic> (<italic>Nucula</italic>) <italic>margaritifera</italic> DOUVILL&#x00C9; &#x2013; ABDEL-GAWAD &#x0026; GAMEIL, p. 77, pl. 1, fig. 1.</p>
<p>2006 <italic>Nucula</italic> (<italic>Nucula</italic>) <italic>margaritifera</italic> DOUVILL&#x00C9; &#x2013; EL QOT, p. 16, pl. 1, figs. 1-2, 5-6.</p>
<p>2007b <italic>Nucula</italic> (<italic>Nucula</italic>) <italic>margaritifera</italic> DOUVILL&#x00C9; &#x2013; MEKAWY, p. 201, pl. 1, fig. 1.</p>
<p>2008 <italic>Nucula</italic> (<italic>Nucula</italic>) <italic>margaritifera</italic> DOUVILL&#x00C9; &#x2013; MEKAWY &#x0026; ABU-ZIED, p. 294, pl. 1, fig. 1.</p>
<p>2011 <italic>Nucula margaritifera</italic> DOUVILL&#x00C9; &#x2013; AYOUB-HANNAA, p. 51, pl. 3, fig. 1.</p>
<p>2014 <italic>Nucula margaritifera</italic> DOUVILL&#x00C9; &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 67, pl. 1, fig. 1.</p>
<p><bold>Description:</bold> Coquille de taille moyenne, ovale &#x00E0; allong&#x00E9;e, l&#x00E9;g&#x00E8;rement gonfl&#x00E9;e et in&#x00E9;quilat&#x00E9;rale. Crochet important situ&#x00E9; au tiers de la longueur depuis l&#x2019;extr&#x00E9;mit&#x00E9; post&#x00E9;rieure. Ornementation absente.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: &#x00C9;gypte (Fawzi, <xref ref-type="bibr" rid="cit0102">1963</xref>; Mekawy, <xref ref-type="bibr" rid="cit0163">2007b</xref>; Mekawy et Abu-Zied, <xref ref-type="bibr" rid="cit0164">2008</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen collect&#x00E9; dans l&#x2019;unit&#x00E9; A.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0001">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 1</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">14</td>
<td align="center">24.72</td>
<td align="center">0.56</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Ordre: Pterioida NEWELL, 1965</p>
<p>Famille: Pinnidae LEACH, <xref ref-type="bibr" rid="cit0151">1819</xref></p>
<p>Genre: <italic>Pinna</italic>
LINN&#x00C9;, <xref ref-type="bibr" rid="cit0152">1758</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Pinna</italic> sp</bold>.</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.3</xref>.</p>
<p><bold>Description:</bold> Sp&#x00E9;cimen &#x00E9;quivalve, fortement in&#x00E9;quilat&#x00E9;ral. Les deux valves sont peu convexes. Ornementation absente.</p>
<p><bold>Mat&#x00E9;riel:</bold> 2 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; A.</p>
<p>Ordre: Ostreoida FERUSSAC, 1822</p>
<p>Famille: Gryphaeidae VYALOV, <xref ref-type="bibr" rid="cit0223">1936</xref></p>
<p>Genre: <italic>Exogyra</italic>
SAY, <xref ref-type="bibr" rid="cit0200">1820</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Exogyra conica</italic></bold> (SOWERBY, 1813)</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.4</xref>.</p>
<p>1813 <italic>Chama conica</italic> SOWERBY, p. 91, p. 69, pl. 26, fig. 3.</p>
<p>1833 <italic>Exogyra subcarinata</italic> GOLDFUSS, p. 44, vol. 2, p. 37, pl. 87, fig. 4.</p>
<p>1847 <italic>Ostrea conica</italic> D&#x2019;ORBIGNY, p. 20, p. 720, pl. 478, figs. 5-8.</p>
<p>1869 <italic>Ostrea conica</italic> SOWERBY &#x2013; COQUAND, pl. 53, figs. 1-7.</p>
<p>1912 <italic>Exogyra conica</italic> SOWERBY &#x2013; PERVINQUI&#x00C8;RE, p. 182.</p>
<p>1912 <italic>Exogyra conica</italic> SOWERBY &#x2013; WOODS, p. 407, text-figs. 215-242.</p>
<p>1917 <italic>Ostrea conica</italic> SOWERBY &#x2013; FOURTAU, p. 32.</p>
<p>1934 <italic>Exogyra conica</italic> SOWERBY &#x2013; BLANCKENHORN, p. 202, pl. 9, fig. 44.l.</p>
<p>1959 <italic>Exogyra</italic> cf. <italic>conica</italic> SOWERBY &#x2013; BOREHAM, p. 121, pl. 11, figs. 1-3.</p>
<p>1972 <italic>Amphidonte conica</italic> SOWERBY &#x2013; FRENEIX, p. 85, pl. 5, figs. 1a-b, 2a-b.</p>
<p>1981 <italic>Amphidonte conicum</italic> SOWERBY &#x2013; AMARD <italic>et al</italic>., p. 83, pl. 4, figs. 12-13.</p>
<p>1982 <italic>Amphidonte obliquatum</italic> SOWERBY &#x2013; DHONDT, p. 856.</p>
<p>2002 <italic>Exogyra conica</italic> SOWERBY &#x2013; ABDEL-GAWAD &#x0026; GAMEIL, p. 85, pl. 2, figs. 3-4.</p>
<p>2011 <italic>Exogyra conica</italic> SOWERBY&#x2013; AYOUB-HANNAA, p.76, pl. 5, figs.7-8; text-figs. 3-4.</p>
<p>2014 <italic>Exogyra conica</italic> SOWERBY &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 78, pl. 3, figs. 4-6.</p>
<p><bold>Description:</bold> Coquille de forme variable au plus jeune &#x00E2;ge, mais r&#x00E9;guli&#x00E8;re &#x00E0; l&#x2019;&#x00E2;ge adulte. Coquille in&#x00E9;quilat&#x00E9;rale, souvent tr&#x00E8;s convexe, plus ou moins sub-triangulaire ou semi-ovale. Valve gauche tr&#x00E8;s convexe et valve droite mince. Operculiforme, souvent un peu concave, avec des lignes d&#x2019;accroissement irr&#x00E9;guli&#x00E8;res. Crochets peu post&#x00E9;rieurement incurv&#x00E9;s en spirale.</p>
<p><bold>R&#x00E9;partition:</bold> Albien-C&#x00E9;nomanien: Angleterre (Woods, 1912), Espagne (Dhondt, <xref ref-type="bibr" rid="cit0083">1982</xref>) et Nouvelle-Z&#x00E9;lande (Boreham, <xref ref-type="bibr" rid="cit0044">1959</xref>). C&#x00E9;nomanien: Maroc (Freineix, <xref ref-type="bibr" rid="cit0113">1972</xref>), Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>; Amard <italic>et al</italic>., <xref ref-type="bibr" rid="cit0017">1981</xref>), Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Fourtau, <xref ref-type="bibr" rid="cit0111">1917</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>), Syrie et Palestine (Blanckenhorn, <xref ref-type="bibr" rid="cit0043">1934</xref>).</p>
<p><bold>Discussion:</bold> Selon Woods (1912), <italic>Exogyra haliotoidea</italic> est une petite forme de <italic>Exogyra conica. Rhynchostreon suborbiculatum</italic> (Lamarck, <xref ref-type="bibr" rid="cit0147">1819</xref>) ressemble &#x00E0; <italic>Exogyra conica</italic> mais en diff&#x00E8;re par une forme plus arrondie.</p>
<p><bold>Mat&#x00E9;riel:</bold> 37 sp&#x00E9;cimens dont 31 r&#x00E9;colt&#x00E9;s dans l&#x2019;unit&#x00E9; A, 2 dans l&#x2019;unit&#x00E9; B et 4 dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0002">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n=37</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">20-44.60</td>
<td align="center">11.20-25.10</td>
<td align="center">1.28-1.79</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">30.12-32.66</td>
<td align="center">20.67-21.13</td>
<td align="center">1.42-1.58</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Genre: <italic>Costagyra</italic>
VYALOV, <xref ref-type="bibr" rid="cit0223">1936</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Costagyra olisiponensis</italic></bold> (SHARPE, <xref ref-type="bibr" rid="cit0205">1850</xref>)</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.5</xref>.</p>
<p>1850 <italic>Exogyra olisiponensis</italic> sp. nov. SHARPE, p. 185, pl. 19, figs. 1-2.</p>
<p>1869 <italic>Ostrea olisoponensis</italic> COQUAND, p. 125, pl. 45, figs. 1-7.</p>
<p>1891 <italic>Ostrea olisiponensis</italic> SHARPE &#x2013; P&#x00C9;RON, pl. 23, figs. 14-18.</p>
<p>1912 <italic>Exogyra olisiponensis</italic> SHARPE &#x2013; PERVINQUI&#x00C8;RE, p. 174, pl. 13, figs. 4-5, 9.</p>
<p>1918 <italic>Exogyra Olisiponensis</italic> SHARPE &#x2013; GRECO, p. 187, pl. 1 (17), figs. 12-14.</p>
<p>1958 <italic>Exogyra olisiponensis</italic> SHARPE &#x2013; BARBER, p. 21, pl. 8, figs. 3-4.</p>
<p>1972 <italic>Exogyra olisiponensis</italic> SHARPE &#x2013; FRENEIX, p. 89, pl. 5, fig. 6.</p>
<p>1990 <italic>Exogyra</italic> (<italic>Costagyra</italic>) <italic>olisiponensis</italic> SHARPE &#x2013; MALCHUS, p. 134, pl. 10, figs. 1-6.</p>
<p>1999 <italic>Exogyra</italic> (<italic>Costagyra</italic>) <italic>olisiponensis</italic> SHARPE &#x2013; SEELING &#x0026; BENGTSON, p. 756, fig. 9a-c.</p>
<p>2004 <italic>Costagyra olisiponensis</italic> SHARPE &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 7, fig. 1.</p>
<p>2006 <italic>Exogyra</italic> (<italic>Costagyra</italic>) <italic>olisiponensis</italic> SHARPE &#x2013; PERRILLIAT <italic>et al</italic>., p. 99, figs. 10-11.</p>
<p>2011 <italic>Costagyra olisiponensis</italic> SHARPE &#x2013; AYOUB-HANNAA, p. 78, pl. 5, fig. 9; pl. 6, figs. 1-2; text-fig. 3.5.</p>
<p>2014 <italic>Costagyra olisiponensis</italic> SHARPE &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 81, pl., 3, fig. 1, pl. 4, figs. 1-2.</p>
<p><bold>Description:</bold> Coquille de taille moyenne, in&#x00E9;quivalve, in&#x00E9;quilat&#x00E9;rale et tr&#x00E8;s &#x00E9;paisse. Elle pr&#x00E9;sente diff&#x00E9;rentes formes: arrondie, ovale ou exogyriforme. Valve gauche fortement convexe et tr&#x00E8;s &#x00E9;paisse, orn&#x00E9;e de nervures radiales pointues. Ces nervures sont crois&#x00E9;es par des lamelles de croissance &#x00E9;cailleuse. La valve droite est orn&#x00E9;e de lamelles de croissance concentriques, dont une partie est travers&#x00E9;e par des nervures radiales courtes. Crochet fortement incurv&#x00E9;.</p>
<p><bold>Discussion:</bold> La grande variation entre les individus de <italic>Costagyra olisiponensis</italic> (Sharpe) a pouss&#x00E9; plusieurs auteurs &#x00E0; proposer de nouveaux noms sp&#x00E9;cifiques tels que <italic>Exogyra oxyntax</italic> (Seguenza, <xref ref-type="bibr" rid="cit0204">1882</xref>).</p>
<p><bold>R&#x00E9;partition:</bold> Albien-Turonien: Br&#x00E9;sil (Seeling &#x0026; Bengtson, <xref ref-type="bibr" rid="cit0203">1999</xref>), Maroc (Freineix, <xref ref-type="bibr" rid="cit0113">1972</xref>), Tunisie (P&#x00E9;ron, <xref ref-type="bibr" rid="cit0179">1891</xref>; Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Greco, <xref ref-type="bibr" rid="cit0125">1918</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>), Palestine (Larlet, <xref ref-type="bibr" rid="cit0150">1873</xref>), Jordanie (Perrilliat <italic>et al</italic>., <xref ref-type="bibr" rid="cit0182">2006</xref>). Turonien: Nigeria (Barber, <xref ref-type="bibr" rid="cit0028">1958</xref>) et Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>; Hardouin, <xref ref-type="bibr" rid="cit0130">1868</xref>; Amard <italic>et al</italic>., <xref ref-type="bibr" rid="cit0017">1981</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 10 sp&#x00E9;cimens dont 2 r&#x00E9;colt&#x00E9;s dans l&#x2019;unit&#x00E9; A, 4 dans l&#x2019;unit&#x00E9; B et 4 dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0003">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n=10</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">41.71-101.21</td>
<td align="center">30.52-102.60</td>
<td align="center">0.63-1.79</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">69.81-82.53</td>
<td align="center">60.71-70.64</td>
<td align="center">1.20-1.35</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Genre: <italic>Ceratostreon</italic>
BAYLE, <xref ref-type="bibr" rid="cit0031">1878</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Ceratostreon flabellatum</italic></bold> (GOLDFUSS, <xref ref-type="bibr" rid="cit0120">1833</xref>) <xref ref-type="fig" rid="f0004">Fig. 4.6</xref>.</p>
<p>1833 <italic>Exogyra flabellata</italic> sp. nov. GOLDFUSS, p. 38, pl. 87, fig. 6.</p>
<p>1862 <italic>Ostrea flabellata</italic> COQUAND, p. 295.</p>
<p>1869 <italic>Ostrea flabellata</italic> COQUAND, p. 126, pl. 49. figs. 1-2; pl. 52, figs. 1-9.</p>
<p>1912 <italic>Exogyra flabellata</italic> GOLDFUSS &#x2013; PERVINQUI&#x00C8;RE, p. 189, pl. 13, fig. 6a-b.</p>
<p>1937 <italic>Exogyra flabellata</italic> GOLDFUSS &#x2013; TREVISAN, p. 37, pl. 5, figs. 11-12.</p>
<p>1972 <italic>Ceratostreon flabellatum</italic> GOLDFUSS &#x2013; FRENEIX, p. 91, pl. 5, figs. 8-9.</p>
<p>1990 <italic>Amphidonte</italic> (<italic>Ceratostreon</italic>) <italic>flabellatum</italic> GOLDFUSS &#x2013; MALCHUS, p. 111, pl. 4, figs. 4-11; pl. 5, figs. 1-7. (avec synonymie).</p>
<p>1999 <italic>Amphidonte</italic> (<italic>Ceratostreon</italic>) <italic>flabellatum</italic> GOLDFUSS &#x2013; SEELING &#x0026; BENGTSON, p. 755, fig. 8a-d.</p>
<p>2002 <italic>Amphidonte</italic> (<italic>Ceratostreon</italic>) <italic>flabellatum</italic> GOLDFUSS &#x2013; AHMAD &#x0026; EL-HAMMAD, p. 450, figs. 2/1, 3, 4, 6.</p>
<p>2002 <italic>Amphidonte</italic> (<italic>Ceratostreon</italic>) <italic>flabellatum</italic> GOLDFUSS &#x2013; BERNDT, p. 109, pl. 3, fig. 8a-b.</p>
<p>2002 <italic>Ceratostreon flabellatum</italic> GOLDFUSS &#x2013; ABDEL-GAWAD &#x0026; GAMEIL, p. 86, pl. 2, fig. 8.</p>
<p>2002 <italic>Ceratostreon flabellatum</italic> GOLDFUSS &#x2013; ABDELHAMID &#x0026; EL QOT, p. 269, pl. 3, fig. 2.</p>
<p>2002 <italic>Ceratostreon flabellatum</italic> GOLDFUSS &#x2013; KASSAB &#x0026; ZAKHERA, p. 8, fig. 3/13-15.</p>
<p>2004 <italic>Amphidonte</italic> (<italic>Ceratostreon</italic>) <italic>flabellatum</italic> GOLDFUSS &#x2013; KHALIL &#x0026; MASHALY, pl. 2, fig. 7.</p>
<p>2004a <italic>Ceratostreon flabellatum</italic> GOLDFUSS &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 7, figs. 8, 9a- b.</p>
<p>2004b <italic>Amphidonte</italic> (<italic>Ceratostreon</italic>) <italic>flabellatum</italic> GOLDFUSS) &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 2, fig. 2a-b.</p>
<p>2006 <italic>Ceratostreon flabellatum</italic> GOLDFUSS &#x2013; EL QOT, p. 40, pl. 6, figs. 5-8; text-fig. 8.</p>
<p>2007b <italic>Ceratostreon flabellatum</italic> GOLDFUSS &#x2013; MEKAWY, p. 215, pl. 2, fig. 11; pl. 3, fig. 6.</p>
<p>2008 <italic>Ceratostreon flabellatum</italic> GOLDFUSS &#x2013; MEKAWY &#x0026; ABU-ZIED, p. 301, pl. 2, fig. 1.</p>
<p>2011 <italic>Ceratostreon flabellatum</italic> GOLDFUSS &#x2013; AYOUB-HANNAA, p. 82, pl. 6, figs. 3-5; pl. 7, figs.1-3; text-fig. 3.6.</p>
<p>2014 <italic>Ceratostreon flabellatum</italic> GOLDFUSS &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 82, pl., 4, figs. 3-5; pl. 5, figs. 1-3.</p>
<p><bold>Description:</bold> Coquille exogyforme, ovale &#x00E0; oblique, plus haute que longue et in&#x00E9;quivalve. Elle montre un contour en croissant ou arrondi. La valve gauche est plus convexe et plus large que la valve droite. Crochet tordu et incurv&#x00E9; post&#x00E9;rieurement. L&#x2019;ornementation est compos&#x00E9;e occasionnellement de nervures en &#x201C;V&#x201D; invers&#x00E9;, en section transversale depuis la quille moyenne qui divise la coquille en deux parties de pente diff&#x00E9;rente.</p>
<p><bold>R&#x00E9;partition:</bold> Albien-S&#x00E9;nonien: Br&#x00E9;sil (Seeling &#x0026; Bengston, <xref ref-type="bibr" rid="cit0203">1999</xref>), Maroc (Freneix, <xref ref-type="bibr" rid="cit0113">1972</xref>), Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Malchus, <xref ref-type="bibr" rid="cit0157">1990</xref>; Ayoub-Hannaa, 2001; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>) et Jordanie (Ahmad &#x0026; El-Hammad, <xref ref-type="bibr" rid="cit0012">2002</xref>; Berndt, <xref ref-type="bibr" rid="cit0039">2002</xref>). C&#x00E9;nomanien: Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>; Amard <italic>et al</italic>., <xref ref-type="bibr" rid="cit0017">1981</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>) et Italie (Trevisan, <xref ref-type="bibr" rid="cit0219">1937</xref>; Russo, <xref ref-type="bibr" rid="cit0197">1958</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 13 sp&#x00E9;cimens dont 2 r&#x00E9;colt&#x00E9;s dans l&#x2019;unit&#x00E9; A, 1 dans l&#x2019;unit&#x00E9; B et 10 dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0004">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n=13</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">21.25-40.48</td>
<td align="center">10.05-32.64</td>
<td align="center">1.24-2.10</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">32.99-35.19</td>
<td align="center">18.54-19.73</td>
<td align="center">53.96-1.80</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Genre: <italic>Ilymatogyra</italic> STENZEL, <xref ref-type="bibr" rid="cit0214">1971</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Ilymatogyra africana</italic></bold> (LAMARCK, <xref ref-type="bibr" rid="cit0146">1801</xref>)</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.7</xref>.</p>
<p>1801 <italic>Gryphaea africana</italic> sp. nov. LAMARCK, p. 399, pl. 139, figs. 5-6.</p>
<p>1862 <italic>Ostrea auressensis</italic> sp. nov. COQUAND, p. 233, pl. 22, figs. 12-13.</p>
<p>1912 <italic>Exogyra Africana</italic> LAMARCK &#x2013; PERVINQUI&#x00C8;RE, p. 184.</p>
<p>1937 <italic>Exogyra africana</italic> LAMARCK &#x2013; TREVISAN, p. 72, pl. 3, fig. 18; pl. 5, figs. 1-4.</p>
<p>1962 <italic>Exogyra africana</italic> LAMARCK &#x2013; ABBASS, p. 65, pl. 9, figs. 2-3.</p>
<p>1999 <italic>Ilymatogyra</italic> (<italic>Afrogyra</italic>) <italic>africana</italic> LAMARCK &#x2013; SEELING &#x0026; BENGTSON, p. 758, fig. 9d-g.</p>
<p>2002 <italic>Ilymatogyra</italic> (<italic>Afrogyra</italic>) <italic>africana</italic> LAMARCK &#x2013; BERNDT, p. 110, pl. 3, figs. 5-7 (forma typica and forma crassa).</p>
<p>2002 <italic>Ilymatogyra</italic> (<italic>Afrogyra</italic>) <italic>africana LAMARCK</italic> &#x2013; AHMAD &#x0026; AL-HAMMAD, p. 452, figs. 2/7-10, non fig. 2.</p>
<p>2004 <italic>Ilymatogyra</italic> (<italic>Afrogyra</italic>) <italic>africana</italic> LAMARCK &#x2013; KHALIL &#x0026; MASHALY, pl. 2, figs. 1-2.</p>
<p>2004a <italic>Ilymatogyra africana</italic> LAMARCK &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 7, figs. 2-3.</p>
<p>2004b <italic>Ilymatogyra africana</italic> LAMARCK &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 1, fig. 15.</p>
<p>2006 <italic>Ilymatogyra africana</italic> LAMARCK &#x2013; EL QOT, p. 42, pl. 7, figs. 1-7, 8a-b; text-fig. 7b.</p>
<p>2007 <italic>Ilymatogyra africana</italic> LAMARCK &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 5, fig. 8.</p>
<p>2007b <italic>Ilymatogyra africana</italic> LAMARCK &#x2013; MEKAWY, p. 216, pl. 3, fig. 2.</p>
<p>2011 <italic>Ilymatogyra</italic> africana LAMARCK &#x2013; AYOUB-HANNAA, p. 82, pl. 7, figs. 4-6; text-fig. 3.7.</p>
<p>2014 <italic>Ilymatogyra africana</italic> LAMARCK &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 84, pl., 5, figs. 4-6.</p>
<p><bold>Description:</bold> Coquille de taille moyenne, allong&#x00E9;e, plus haute que longue, in&#x00E9;quivalve et in&#x00E9;quilat&#x00E9;rale. Valve gauche plus convexe que la valve droite. Crochet petit et peu tordu. La valve gauche est orn&#x00E9;e de lamelles &#x00E9;cailleuses ou lisses, &#x00E0; croissance r&#x00E9;guli&#x00E8;re.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Br&#x00E9;sil (Seeling &#x0026; Bengtson, <xref ref-type="bibr" rid="cit0203">1999</xref>), Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0037">2016</xref>), Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Abbass, <xref ref-type="bibr" rid="cit0001">1962</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>), Jordanie (Ahmad &#x0026; El-Hammad, <xref ref-type="bibr" rid="cit0012">2002</xref>; Berndt, <xref ref-type="bibr" rid="cit0039">2002</xref>) et Italie (Trevisan, <xref ref-type="bibr" rid="cit0219">1937</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0005">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 1</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">32.03</td>
<td align="center">22.50</td>
<td align="center">1.42</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Genre: <italic>Rhynchostreon</italic>
BAYLE, <xref ref-type="bibr" rid="cit0031">1878</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Rhynchostreon suborbiculatum</italic></bold> (LAMARCK, <xref ref-type="bibr" rid="cit0146">1801</xref>) <xref ref-type="fig" rid="f0004">Fig. 4.8</xref>.</p>
<p>1801 <italic>Gryphaea suborbiculata</italic> sp. nov. &#x2013; LAMARCK, p. 398, pl. 23, figs. 11-13.</p>
<p>1819 <italic>Gryphaea columba</italic> sp. nov. LAMARCK, p. 198.</p>
<p>1862 <italic>Ostrea Mermeti</italic> sp. nov. COQUAND, p. 234, pl. 23, figs. 3-5.</p>
<p>1871 <italic>Exogyra suborbiculata</italic> LAMARCK &#x2013; STOLICZKA, p. 462, pl. 35, figs. 1-4.</p>
<p>1912 <italic>Exogyra columba</italic> LAMARCK &#x2013; PERVINQUI&#x00C8;RE, p. 180.</p>
<p>1918 <italic>Exogyra columba</italic> LAMARCK &#x2013; GRECO, p. 7 (189), pl. 1 (17), figs. 15-18; pl. 2 (18), figs. 1-4.</p>
<p>1972 <italic>Rhynchostreon columbum</italic> LAMARCK <italic>mermeti</italic> COQUAND &#x2013; FRENEIX, p. 88, pl. 5, figs. 4, 5.</p>
<p>1982 <italic>Rhynchostreon suborbiculatum</italic> LAMARCK &#x2013; DHONDT, p. 61, fig. 3a.</p>
<p>2002 <italic>Rhynchostreon mermeti</italic> COQUAND &#x2013; AHMAD &#x0026; ABDELHAMID, p. 456, figs. 3/4-11; figs. 4/1-2.</p>
<p>2004 <italic>Rhynchostreon suborbiculatum</italic> LAMARCK &#x2013; KHALIL &#x0026; MASHALY, pl. 2, figs. 3-4.</p>
<p>2004a <italic>Rhynchostreon suborbiculatum</italic> LAMARCK &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 7, figs. 4a-b, 6.</p>
<p>2004b <italic>Rhynchostreon mermeti</italic> COQUAND &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 1, fig. 16.</p>
<p>2006 <italic>Rhynchostreon suborbiculatum</italic> LAMARCK &#x2013; EL QOT, p. 43, pl. 7, figs. 9a-11; pl. 8, figs. 1-4, text-fig. 8B.</p>
<p>2007b <italic>Rhynchostreon suborbiculatum</italic> LAMARCK &#x2013; MEKAWY, p. 217, pl. 3, figs. 3, 4.</p>
<p>2011 <italic>Rhynchostreon suborbiculatum</italic> LAMARCK &#x2013; AYOUB-HANNAA, p. 82, pl. 7, figs. 7-9; text-fig. 3.8.</p>
<p>2014 <italic>Rhynchostreon suborbiculatum</italic> LAMARCK &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 86, pl. 5, figs. 7-10.</p>
<p><bold>Description:</bold> Coquille de petite &#x00E0; moyenne taille, plus haute que longue et in&#x00E9;quilat&#x00E9;rale. Forme ovale, allong&#x00E9;e &#x00E0; exogyriforme. La valve gauche est plus convexe et plus grande que la valve droite. Crochet petit et mod&#x00E9;r&#x00E9;ment tordu. L&#x2019;ornementation se caract&#x00E9;rise par la pr&#x00E9;sence de lamelles de croissance marginales sur la valve droite et de nervures radiales sur la valve gauche.</p>
<p><bold>Discussion:</bold> <italic>Ostrea columba</italic> de Coquand r&#x00E9;colt&#x00E9;e en Alg&#x00E9;rie est consp&#x00E9;cifique &#x00E0; <italic>Rhynchostreon suborbiculatum</italic> et les diff&#x00E9;rences mentionn&#x00E9;es auparavant dans plusieurs travaux sont parfois inexistantes (Thomas, 1891).</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: France (Dhondt, 1985), Portugal (Soares, <xref ref-type="bibr" rid="cit0212">1966</xref>; Choffat, 1901), Maroc (Freneix, <xref ref-type="bibr" rid="cit0113">1972</xref>), Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>; Collignon, <xref ref-type="bibr" rid="cit0063">1971</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>), Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Greco, <xref ref-type="bibr" rid="cit0125">1918</xref>; Malchus, <xref ref-type="bibr" rid="cit0157">1990</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>), Jordanie (Aqrabawi, <xref ref-type="bibr" rid="cit0022">1993</xref>; Ahmad &#x0026; El-Hammad, <xref ref-type="bibr" rid="cit0012">2002</xref>) et l&#x2019;Inde (Stoliczka, 1871).</p>
<p><bold>Mat&#x00E9;riel:</bold> 42 sp&#x00E9;cimens dont 5 r&#x00E9;colt&#x00E9;s dans l&#x2019;unit&#x00E9; A, 3 dans l&#x2019;unit&#x00E9; B et 34 dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0006">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n=42</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">14.87-28.12</td>
<td align="center">8.49-39.61</td>
<td align="center">0.71-1.75</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">20.14-22.22</td>
<td align="center">18.43-20.06</td>
<td align="center">1.19-1.34</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Famille: Ostreidae WILKES, <xref ref-type="bibr" rid="cit0227">1810</xref></p>
<p>Genre: <italic>Rastellum</italic> FAUJAS-SAINT-FOND, <xref ref-type="bibr" rid="cit0101">1799</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Rastellum carinatum</italic></bold> (LAMARCK, <xref ref-type="bibr" rid="cit0144">1806</xref>)</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.9</xref>.</p>
<p>1767 <italic>Ostrea diluviana</italic> LINN&#x00C9;, p. 1148.</p>
<p>1806 <italic>Ostrea carinata</italic> sp. nov. LAMARCK, p. 166.</p>
<p>1827 <italic>Ostrea diluviana,</italic> LINN&#x00C9; &#x2013; NILSSON, p. 32, pl. 6, figs. la-c, 2.</p>
<p>1871 <italic>Ostrea</italic> (<italic>Alectryonia</italic>) <italic>carinata</italic> LAMARCK &#x2013; STOLICZKA, p. 468, pl. 48, fig. 5; pl. 49, figs. 1-2.</p>
<p>1894 <italic>Ostrea diluviana</italic> LINN&#x00C9; &#x2013; LUNDGREN, p. 36.</p>
<p>1912 <italic>Ostrea diluviana,</italic> LINN&#x00C9; &#x2013;WOODS, p. 342, text-figs. 98-138.</p>
<p>1938 <italic>Ostrea diluviana</italic> LINN&#x00C9; &#x2013; CARLSSON, p. 10.</p>
<p>1982 <italic>Lopha diluviana</italic> LINN&#x00C9; &#x2013; GRUNDEL, p. 157, pl. 4, figs. 6-10.</p>
<p>2004a <italic>Rastellum carinatum</italic> LAMARCK &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 8, figs. 9-10.</p>
<p>2004b <italic>Rastellum</italic> (<italic>Arctostrea</italic>) <italic>carinatum</italic> LAMARCK &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 2, fig. 5.</p>
<p>2006 <italic>Rastellum carinatum</italic> (LAMARCK) &#x2013; EL QOT, p. 59, pl. 11, figs. 5, 6-7.</p>
<p>2011 <italic>Rastellum carinatum</italic> LAMARCK &#x2013; AYOUB-HANNAA, p. 100, pl. 9, figs. 1-2.</p>
<p>2014 <italic>Rastellum carinatum</italic> LAMARCK &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 94, pl. 7, figs. 1-2.</p>
<p><bold>Description:</bold> Coquille &#x00E9;paisse de taille moyenne, en forme de croissant. Flanc post&#x00E9;rieur faiblement inclin&#x00E9;. La valve gauche se divise en deux par une quille &#x00E0; partir de laquelle se d&#x00E9;veloppent des nervures bien marqu&#x00E9;es dans les deux sens vers la marge.</p>
<p><bold>R&#x00E9;partition:</bold> Cr&#x00E9;tac&#x00E9; Sup&#x00E9;rieur: Inde (Stoliczka, 1871), Angleterre (Woods, 1912) et &#x00C9;gypte (Abdel Gawad <italic>et al</italic>., <xref ref-type="bibr" rid="cit0004">2004a</xref>, <xref ref-type="bibr" rid="cit0005">2004b</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 4 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; C.</p>
<p>Famille: Plicatulidae WATSON, <xref ref-type="bibr" rid="cit0225">1930</xref></p>
<p>Genre: <italic>Plicatula</italic>
LAMARCK, <xref ref-type="bibr" rid="cit0146">1801</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Plicatula auressensis</italic></bold> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>)</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.10</xref>.</p>
<p>1862 <italic>Plicatula auressensis</italic> sp. nov. COQUAND, p. 222, pl. 16, figs. 14-16.</p>
<p>1862 <italic>Plicatula Reynesi</italic> sp. nov COQUAND, p. 222, pl. 17, figs. 1-2.</p>
<p>1934 <italic>Plicatula reynesi</italic> COQUAND &#x2013; BLANCKENHORN, p. 193.</p>
<p>1958 <italic>Plicatula auressensis</italic> COQUAND &#x2013; BARBER, p. 20, pl. 7, fig. 4.</p>
<p>1962 <italic>Plicatula auressensis</italic> COQUAND &#x2013; ABBASS, p. 61, pl. 7, figs. 17-19.</p>
<p>1981 <italic>Plicatula auressensis</italic> COQUAND &#x2013; AMARD <italic>et al</italic>., p. 72.</p>
<p>2004b <italic>Plicatula reynesi</italic> COQUAND &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 1, fig. 13.</p>
<p>2006 <italic>Plicatula auressensis</italic> COQUAND &#x2013; EL QOT, p. 62, pl. 12, figs. 2a-b, 3-4.</p>
<p>2011 <italic>Plicatula auressensis</italic> COQUAND &#x2013; AYOUB-HANNAA, p. 100, pl. 9, figs. 5-6.</p>
<p>2014 <italic>Plicatula auressensis</italic> COQUAND &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 96, pl. 7, figs. 5-6.</p>
<p><bold>Description:</bold> Coquilles incompl&#x00E8;tes qui laissent apercevoir une forme ovale ou triangulaire. Ornementation compos&#x00E9;e de nervures radiales fortes au nombre de 4 qui se d&#x00E9;veloppent &#x00E0; une petite distance du crochet. Elles deviennent &#x00E9;pineuses vers la marge ventrale, sur lesquelles se montrent des lamelles concentriques pas trop visibles.</p>
<p><bold>Discussion:</bold> Selon Coquand, cette esp&#x00E8;ce rappelle, par sa forme g&#x00E9;n&#x00E9;rale, <italic>Plicatula Garteroni</italic> d&#x2019;Orbigny<italic>.</italic> Elle s&#x2019;en distingue par un nombre de c&#x00F4;tes plus consid&#x00E9;rable et par l&#x2019;absence de pointes droites sur les c&#x00F4;tes principales.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>; Amard <italic>et al</italic>., <xref ref-type="bibr" rid="cit0017">1981</xref>; Zaoui, <xref ref-type="bibr" rid="cit0235">2017</xref>), Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Abbas, <xref ref-type="bibr" rid="cit0001">1962</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>), Italie (Trevisan, <xref ref-type="bibr" rid="cit0219">1937</xref>) et Syrie (Blanckenhorn, <xref ref-type="bibr" rid="cit0043">1934</xref>). Coniacien: Nigeria (Barber, <xref ref-type="bibr" rid="cit0028">1958</xref>). Maestrichtien: Alg&#x00E9;rie (Collignon, <xref ref-type="bibr" rid="cit0063">1971</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 2 sp&#x00E9;cimens dont 1 r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9; A et 1 dans l&#x2019;unit&#x00E9; B.</p>
<p>Esp&#x00E8;ce: <bold><italic>Plicatula</italic> sp</bold>.</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.11</xref>.</p>
<p><bold>Description:</bold> Sp&#x00E9;cimen de petite taille qui n&#x2019;appara&#x00EE;t pas dans sa totalit&#x00E9;. Forme ovale &#x00E0; triangulaire, non &#x00E9;pineuse, orn&#x00E9;e de nervures marqu&#x00E9;es et assez espac&#x00E9;es.</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9; A.</p>
<p>Ordre: Pectinoida NEWELL &#x0026; BOYD, <xref ref-type="bibr" rid="cit0172">1995</xref> (= Pectinina WALLER, <xref ref-type="bibr" rid="cit0224">1978</xref>)</p>
<p>Famille: Pectinidae WILKES, <xref ref-type="bibr" rid="cit0227">1810</xref></p>
<p>Genre: <italic>Neithea</italic>
DROUET, <xref ref-type="bibr" rid="cit0094">1824</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Neithea coquandi</italic></bold> (P&#x00C9;RON, <xref ref-type="bibr" rid="cit0178">1877</xref>)</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.12</xref>.</p>
<p>1813 <italic>Neithea regularis</italic> SCHLOTHEIM, pl. 1, fig. 8; pI. 2, figs. 1, 4.</p>
<p>1847 <italic>Janira quadricostata</italic> D&#x2019;ORBIGNY, p. 644, pl. 447, figs. 1-7.</p>
<p>1850 <italic>Janira Geinitzii</italic> D&#x2019;ORBIGNY, p. 197.</p>
<p>1862 <italic>Janira tricostata</italic> sp. nov. COQUAND, p. 219, pl. 13, figs. 3-4.</p>
<p>1912 <italic>Pecten</italic> (<italic>Neithea</italic>) <italic>Shawi</italic> sp. nov. PERVINQUI&#x00C8;RE, p. 136, pl. 9, figs. 1-6.</p>
<p>1934 <italic>Pecten</italic> (<italic>Vola</italic>) <italic>Shawi</italic> PERVINQUI&#x00C8;RE &#x2013; BLANCKENHORN, p. 191, pl. 9, fig. 24.</p>
<p>1937 <italic>Pecten</italic> (<italic>Neithea</italic>) <italic>Shawi</italic> PERVINQUI&#x00C8;RE &#x2013; TREVISAN, p. 55, pl. 3, fig. 2.</p>
<p>1973 <italic>Neithea (Neithea) regularis</italic> SCHLOTEIM &#x2013; DHONDT, p. 20, figs. 1, 3.</p>
<p>2004b <italic>Neithea</italic> (<italic>Neithea</italic>) <italic>coquandi</italic> P&#x00C9;RON &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 1, fig. 11.</p>
<p>2011 <italic>Neithea</italic> (<italic>Neithea</italic>) <italic>coquandi</italic> P&#x00C9;RON &#x2013; AYOUB-HANNAA, p.100, pl. 9, fig. 9; text-fig. 3.11.</p>
<p>2014 <italic>Neithea coquandi</italic> P&#x00C9;RON &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 98, pl. 7, fig. 10.</p>
<p><bold>Description:</bold> Coquille moyenne &#x00E0; petite, ovale, in&#x00E9;quivalve et &#x00E9;quilat&#x00E9;rale. Valve droite fortement plus convexe que la valve gauche. Pr&#x00E9;sence de trois nervures intercal&#x00E9;es entre chaque couple de nervures principales (en nombre de cinq). Le bec est fortement incurv&#x00E9; vers l&#x2019;int&#x00E9;rieur.</p>
<p><bold>Discussion:</bold> <italic>Neithea coquandi</italic> est facilement reconnaissable des autres esp&#x00E8;ces du genre <italic>Neithea</italic> en ayant trois nervures qui sont en grande partie in&#x00E9;gales.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>) et &#x00C9;gypte (Abdel Gawad <italic>et al</italic>., <xref ref-type="bibr" rid="cit0005">2004b</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>). Turonien: France (Dhondt, <xref ref-type="bibr" rid="cit0082">1973</xref>) et Italie (Trevisan, <xref ref-type="bibr" rid="cit0219">1937</xref>). Santonien: Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>, 1969) et Turquie (Dartevelle &#x0026; Br&#x00E9;vion, <xref ref-type="bibr" rid="cit0076">1956</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 3 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; A.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0007">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n= 3</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">16.25-40.34</td>
<td align="center">12.31-31.27</td>
<td align="center">1.29-1.32</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">23.64-35.42</td>
<td align="center">21.70-21.81</td>
<td align="center">0.98-1.14</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Esp&#x00E8;ce: <bold><italic>Neithea dutrugei</italic></bold> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>)</p>
<p><xref ref-type="fig" rid="f0004">Fig. 4.13</xref>.</p>
<p>1862 <italic>Janira dutrugei</italic> sp. nov. COQUAND, p. 219, pl. 13, figs. 1-2.</p>
<p>1902 <italic>Vola dutrujei</italic> COQUAND var. <italic>beirensis</italic> CHOFFAT, p. 150, pl. 2, figs. 1-2.</p>
<p>1918 <italic>Pecten</italic> (<italic>Neithea</italic>) <italic>dutrugei</italic> COQUAND &#x2013; GRECO, p. 24 (206), pl. 3 (19), figs. 7-9.</p>
<p>1934 <italic>Pecten</italic> (<italic>Vola</italic>) <italic>dutrugei</italic> COQUAND &#x2013; BLANCKENHORN, p. 192, pl. 9, fig. 25.</p>
<p>1934 <italic>Pecten</italic> (<italic>Vola</italic>) <italic>zakarjensis</italic> sp. nov. BLANCKENHORN, p. 192, pl. 9, fig. 26.</p>
<p>2004b <italic>Neithea</italic> (<italic>Neithea</italic>) <italic>dutrugei</italic> COQUAND &#x2013; ABDEL-GAWAD <italic>et al</italic>., p. 323, pl. 1, fig. 12a-b.</p>
<p>2006 <italic>Neithea</italic> (<italic>Neithea</italic>) <italic>dutrugei</italic> COQUAND &#x2013; EL QOT, p. 65, pl. 12, figs. 16-17.</p>
<p>2006 <italic>Neithea</italic> (<italic>Neithea</italic>) <italic>dutrugei</italic> COQUAND &#x2013; PERRILLIAT <italic>et al</italic>., p. 101, figs. 14-16.</p>
<p>2007b <italic>Neithea</italic> (<italic>Neithea</italic>) <italic>dutrugei</italic> COQUAND &#x2013; MEKAWY, p. 225, pl. 4, fig. 6.</p>
<p>2011 <italic>Neithea</italic> (<italic>Neithea</italic>) <italic>dutrugei</italic> COQUAND &#x2013; AYOUB-HANNAA, p. 100, pl. 9, fig. 10; text-fig. 3.12.</p>
<p>2014 <italic>Neithea dutrugei</italic> COQUAND &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 98, pl. 7, fig. 11.</p>
<p><bold>Description:</bold> Coquille de petite taille, &#x00E0; contour ovale, in&#x00E9;quivalve et l&#x00E9;g&#x00E8;rement in&#x00E9;quilat&#x00E9;rale. Marge ventrale sub-circulaire et assez large. La valve gauche est orn&#x00E9;e de plusieurs nervures principales et secondaires lisses dispos&#x00E9;es al&#x00E9;atoirement.</p>
<p><bold>Discussion:</bold> <italic>Neithea dutrugei</italic> se distingue facilement des autres esp&#x00E8;ces du genre par la pr&#x00E9;sence de nombreuses nervures irr&#x00E9;guli&#x00E8;res.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Portugal (Choffat, <xref ref-type="bibr" rid="cit0060">1902</xref>), &#x00C9;gypte (Greco, <xref ref-type="bibr" rid="cit0125">1918</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>), Syrie et Palestine (Blanckenhorn, <xref ref-type="bibr" rid="cit0043">1934</xref>), Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>). Turonien inf&#x00E9;rieur: Jordanie (Perrilliat <italic>et al</italic>., <xref ref-type="bibr" rid="cit0182">2006</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 2 sp&#x00E9;cimens r&#x00E9;colt&#x00E9;s dans l&#x2019;unit&#x00E9; C.</p>
<p>Ordre: Trigonioida DALL, <xref ref-type="bibr" rid="cit0074">1889</xref></p>
<p>Famille: Trigoniidae LAMARCK, <xref ref-type="bibr" rid="cit0147">1819</xref></p>
<p>Genre: <italic>Pterotrigonia</italic>
VAN HOEPEN, <xref ref-type="bibr" rid="cit0220">1929</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Pterotrigonia scabra</italic></bold> (LAMARCK, <xref ref-type="bibr" rid="cit0147">1819</xref>)</p>
<p><xref ref-type="fig" rid="f0005">Fig. 5.1</xref></p>
<fig id="f0005">
<label>Fig. 5</label>
<caption><p>1. <italic>Pterotrigonia scabra</italic> (LAMARCK, <xref ref-type="bibr" rid="cit0147">1819</xref>) de l&#x2019;unit&#x00E9; A: 1a- valve gauche, 1b- valve droite. 2. <italic>Caprinula boissyi</italic> (D&#x2019;ORBIGNY, 1839) de l&#x2019;unit&#x00E9; D. 3. <italic>Radiolites sauvagesi</italic> (D&#x2019;HOMBRES-FIRMAS, <xref ref-type="bibr" rid="cit0086">1838</xref>) de l&#x2019;unit&#x00E9; C: 3a- valve droite, 3b- vue dorsale. 4. <italic>Eoradiolites liratus</italic> (CONRAD, <xref ref-type="bibr" rid="cit0064">1852</xref>) de l&#x2019;unit&#x00E9; C. 5. <italic>Sphaerulites depressus</italic> (BLANCKENHORN, <xref ref-type="bibr" rid="cit0043">1934</xref>) de l&#x2019;unit&#x00E9; C. 6. <italic>Lucina fallax</italic> (FORBES, <xref ref-type="bibr" rid="cit0108">1846</xref>) de l&#x2019;unit&#x00E9; C: 6a- valve droite, 6b- vue de cot&#x00E9;. 7. <italic>Clisocolus corrugatus</italic>
POPENOE, <xref ref-type="bibr" rid="cit0188">1937</xref> de l&#x2019;unit&#x00E9; C. 8. <italic>Venericardia forgemoli</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) de l&#x2019;unit&#x00E9; C. 9. <italic>Granocardium carolinum</italic> (D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0088">1843</xref>) de l&#x2019;unit&#x00E9; C: 9a- vue de cot&#x00E9;, 9b- valve gauche, 9c- valve droite. 10. <italic>Granocardium desvauxi</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) de l&#x2019;unit&#x00E9; C: 10a- valve droite, 10b- vue de c&#x00F4;t&#x00E9;, 10c- valve gauche. 11. <italic>Granocardium (Granocardium) productum</italic> (J. DE C. SOWERBY, 1832) de l&#x2019;unit&#x00E9; C: 11a- valve droite, 11b- vue de cot&#x00E9;. (chaque barre correspond &#x00E0; 1 cm).</p></caption>
<graphic xlink:href="EG201810-82-g005.tif" xmlns:xlink="http://www.w3.org/1999/xlink"/>
</fig>
<p>1819 <italic>Trigonia scabra</italic> sp. nov. LAMARCK, p. 63, no. 2.</p>
<p>1819 <italic>Trigonia crenulata</italic> sp. nov. LAMARCK, p. 63, no. 3.</p>
<p>1871 <italic>Trigonia scabra</italic> LAMARCK &#x2013; STOLICZKA, p. 314, pl. 15, figs. 24-26; pl. 16, figs. 35-40.</p>
<p>1880 <italic>Lyriodon ethra</italic> sp. nov. COQUAND, p. 388.</p>
<p>1912 <italic>Trigonia Ethra</italic> COQUAND &#x2013; PERVINQUI&#x00C8;RE, p. 218, pl. 15, figs. 4-7.</p>
<p>1917 <italic>Trigonia Ethra</italic> COQUAND &#x2013; FOURTAU, p. 59.</p>
<p>1937 <italic>Trigonia Ethra</italic> COQUAND &#x2013; TREVISAN, p. 81, pl. 5, fig. 13a-b.</p>
<p>2002 <italic>Pterotrigonia</italic> (<italic>Scabrotrigoni</italic>a) <italic>ethra</italic> COQUAND &#x2013; ABDEL-GAWAD &#x0026; GAMEIL, p. 89, pl. 2, fig. 14.</p>
<p>2002 <italic>Pterotrigonia</italic> (<italic>Scabrotrigoni</italic>a) sp. &#x2013; ABDELHAMID &#x0026; EL QOT, p. 273, pl. 4, fig. 4.</p>
<p>2002 <italic>Pterotrigonia</italic> (<italic>Scabrotrigoni</italic>a) <italic>scabra</italic> LAMARCK &#x2013; KORA <italic>et al</italic>., pl. 2, fig. 12.</p>
<p>2004b <italic>Trigonia ethra</italic> COQUAND &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 2, fig. 7.</p>
<p>2006 <italic>Pterotrigonia</italic> (<italic>Scabrotrigoni</italic>a) <italic>scabra</italic> LAMARCK &#x2013; EL-HEDENY, p. 711, pls. 1-2.</p>
<p>2006 <italic>Pterotrigonia</italic> (<italic>Scabrotrigoni</italic>a) <italic>scabra</italic> LAMARCK &#x2013; EL QOT, p. 65, pl. 13, figs. 3-5.</p>
<p>2007b <italic>Pterotrigonia</italic> (<italic>Scabrotrigoni</italic>a) <italic>scabra</italic> LAMARCK &#x2013; MEKAWY, p. 226, pl. 4, fig. 10.</p>
<p>2008 <italic>Pterotrigonia</italic> (<italic>Scabrotrigoni</italic>a) <italic>scabra</italic> LAMARCK &#x2013; MEKAWY &#x0026; ABU-ZIED, p. 307, pl. 2, fig. 13.</p>
<p>2011 <italic>Pterotrigonia</italic> (<italic>Scabrotrigonia</italic>) <italic>scabra</italic> LAMARCK &#x2013; AYOUB-HANNAA, p. 112, pl. 10, fig. 2; text-fig. 3.15.</p>
<p>2014 <italic>Pterotrigonia</italic> (<italic>Scabrotrigonia</italic>) <italic>scabra</italic> LAMARCK &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 101, pl. 8, fig. 2.</p>
<p><bold>Description:</bold> Coquille de taille moyenne, aussi haute que longue, &#x00E0; contour en croissant, tr&#x00E8;s in&#x00E9;quilat&#x00E9;rale et &#x00E9;quivalve. Crochet &#x00E9;troit et peu pointu. Ornementation se composant de lignes arqu&#x00E9;e, tr&#x00E9;s espac&#x00E9;es, plus prononc&#x00E9;es vers la marge post&#x00E9;rieure. Elle se d&#x00E9;veloppe &#x00E0; partir de la quille m&#x00E9;diane.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien-Santonien: Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Fourtau, <xref ref-type="bibr" rid="cit0111">1917</xref>
Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>) et Italie (Trevisan, <xref ref-type="bibr" rid="cit0219">1937</xref>). Santonien: Inde (Stoliczka, 1871).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen trouv&#x00E9; dans l&#x2019;unit&#x00E9; A.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0008">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 1</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">31.72</td>
<td align="center">26.65</td>
<td align="center">1.19</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Ordre: Hippuritoida NEWELL, 1965</p>
<p>Famille: Caprinidae D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0090">1850</xref></p>
<p>Genre: <italic>Caprinula</italic>
D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0089">1847</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Caprinula boissyi</italic></bold> (D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0087">1840</xref>)</p>
<p><xref ref-type="fig" rid="f0005">Fig. 5.2</xref></p>
<p>1840 <italic>Caprina boissyi</italic>, D&#x2019;ORBIGNY, p. 169.</p>
<p>1847 <italic>Caprinula boissyi</italic> D&#x2019;ORBIGNY, pl. 7, fig. 52.</p>
<p>1888 <italic>Caprinula boissyi</italic> D&#x2019;ORBIGNY &#x2013; DOUVILL&#x00C9;, p. 707, pl. 22, figs. 1 a, b.</p>
<p>2007 <italic>Caprinula boissyi</italic> D&#x2019;ORBIGNY &#x2013; TENTOR, p. 6, figs. 4-5.</p>
<p>2010 <italic>Caprinula boissyi</italic> D&#x2019;ORBIGNY &#x2013; CHIKHI-AOUIMEUR, p. 92, 93, figs. 83, 1-3, figs. 84, 1-4.</p>
<p>2016 <italic>Caprinula boissyi</italic> D&#x2019;ORBIGNY &#x2013; &#x00D6;ZER &#x0026; AHMAD, p. 148, figs. 6E, 6F.</p>
<p><bold>Description:</bold> Rudiste &#x00E0; valve gauche plus grande que la droite. Les moules externes incomplets montrent une ornementation compos&#x00E9;e de nervures longitudinales minces. La couche externe de la valve gauche laisse observer le canal caract&#x00E9;ristique du genre <italic>Caprinula</italic>.</p>
<p><bold>Discussion:</bold> <italic>Caprinula boissyi</italic> d&#x2019;Orbigny et <italic>Caprinula cedrorum</italic> (Blanckenhorn) sont tr&#x00E8;s semblables mais la premi&#x00E8;re esp&#x00E8;ce se distingue par une cavit&#x00E9; accessoire post&#x00E9;rieure plus petite.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien sup&#x00E9;rieur: Alg&#x00E9;rie (Chikhi-Aouimeur, <xref ref-type="bibr" rid="cit0054">1995</xref>, <xref ref-type="bibr" rid="cit0058">2010</xref>; Benyoucef &#x0026; Meister, <xref ref-type="bibr" rid="cit0036">2015</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0037">2016</xref>), Liban (Douvill&#x00E9;, 1910).</p>
<p><bold>Mat&#x00E9;riel:</bold> 30 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; D.</p>
<p>Famille: Radiolitidae GRAY, <xref ref-type="bibr" rid="cit0122">1848</xref></p>
<p>Genre: <italic>Radiolites</italic>
LAMARCK, <xref ref-type="bibr" rid="cit0146">1801</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Radiolites sauvagesi</italic></bold> (D&#x2019;HOMBRES-FIRMAS, <xref ref-type="bibr" rid="cit0086">1838</xref>) <xref ref-type="fig" rid="f0005">Fig. 5.3</xref>.</p>
<p>1838 <italic>Sphaerulites sauvagesi</italic> sp. nov. D&#x2019;HOMBRES-FIRMAS, p. 193, pl. 2.</p>
<p>1999 <italic>Radiolites sauvagesi</italic> D&#x2019;HOMBRES-FIRMAS &#x2013; STEUBER, p. 101, pl. 17, figs. 1-14; pl. 18, figs. 1-5; text-figs. 40-41.</p>
<p>2005 <italic>Radiolites sauvagesi</italic> D&#x2019;HOMBRES-FIRMAS &#x2013; ALY <italic>et al</italic>., p. 263, pl. 6, figs. 4-5; pl. 7, fig. 1a-b.</p>
<p>2007 <italic>Radiolites sauvagesi</italic> D&#x2019;HOMBRES-FIRMAS &#x2013; EL-HEDNEY, p. 91, fig. 8e-h.</p>
<p>2011 <italic>Radiolites sauvagesi</italic> D&#x2019;HOMBRES-FIRMAS &#x2013; AYOUB-HANNAA, p. 112, pl. 10, figs. 7-8; text-fig. 3.18.</p>
<p>2014 <italic>Radiolites sauvagesi</italic> D&#x2019;HOMBRES-FIRMAS &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 105, pl. 8, figs. 7-8.</p>
<p><bold>Description:</bold> De forme cylindrique &#x00E0; section circulaire, de 50 mm de hauteur et 35 mm de diam&#x00E8;tre. Ornementation compos&#x00E9;e de lamelles plicatives en pente moyenne.</p>
<p><bold>Discussion:</bold> La structure interne de <italic>Radiolites sauvagesi</italic> ressemble &#x00E9;troitement &#x00E0; celle de <italic>Durania arnaudi</italic> (CHOFFAT, <xref ref-type="bibr" rid="cit0179">1891</xref>) mais en diff&#x00E8;re par une ar&#x00EA;te ligamentaire bien d&#x00E9;velopp&#x00E9;e.</p>
<p><bold>R&#x00E9;partition:</bold> Cr&#x00E9;tac&#x00E9; Sup&#x00E9;rieur: &#x00C9;gypte (Aly <italic>et al</italic>., <xref ref-type="bibr" rid="cit0014">2005</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>). C&#x00E9;nomanien moyen &#x00E0; sup&#x00E9;rieur: Alg&#x00E9;rie (Chikhi-Aouimeur, <xref ref-type="bibr" rid="cit0055">1998</xref>). Coniacien: Gr&#x00E8;ce (Steuber, 1999).</p>
<p><bold>Mat&#x00E9;riel:</bold> 3 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; C.</p>
<p>Genre: <italic>Eoradiolites</italic> DOUVILL&#x00C9;, 1909</p>
<p>Esp&#x00E8;ce: <bold><italic>Eoradiolites liratus</italic></bold> (CONRAD, <xref ref-type="bibr" rid="cit0064">1852</xref>)</p>
<p><xref ref-type="fig" rid="f0005">Fig. 5.4</xref>.</p>
<p>1852 <italic>Hippurites liratus</italic> sp. nov. CONRAD, p. 234, pl. 7, figs. 47-48.</p>
<p>1913 <italic>Eoradiolities lyratus</italic> CONRAD &#x2013; DOUVILL&#x00C8;, p. 244, pl. 14 (1), figs. 3-11; pl. 16 (3), fig. 8; text-fig. 6.</p>
<p>1998 <italic>Eoradiolities lyratus</italic> CONRAD &#x2013; MASSE <italic>et al</italic>., p. 54, figs. 9/1-9.</p>
<p>2004a <italic>Eoradiolites liratus</italic> CONRAD &#x2013; ABDEL-GAWAD <italic>et al</italic>., p. 293, pl. 9, figs. 8-9.</p>
<p>2004b <italic>Eoradiolites liratus</italic> CONRAD &#x2013; ABDEL-GAWAD <italic>et al</italic>., p. 372, pl. 4, fig. 2.</p>
<p>2005 <italic>Eoradiolites liratus</italic> CONRAD &#x2013; SADOONI, p. 220, text-fig. 5.</p>
<p>2005 <italic>Eoradiolites liratus</italic> CONRAD &#x2013; ALY <italic>et al</italic>., p. 256, pl. 1, figs. 4-8; pl. 2, fig. 2a-b.</p>
<p>2006 <italic>Eoradiolites liratus</italic> CONRAD &#x2013; EL QOT, p. 69, pl. 13, figs. 13-15.</p>
<p>2007 <italic>Eoradiolites liratus</italic> CONRAD &#x2013; EL HEDENY, p. 90, fig. 6/n-r.</p>
<p>2007b <italic>Eoradiolites liratus</italic> CONRAD &#x2013; MEKAWY, p. 227, pl. 4, figs. 11, 12.</p>
<p>2008 <italic>Eoradiolites liratus</italic> CONRAD &#x2013; MEKAWY &#x0026; ABU-ZIED, p. 308, pl. 2, fig. 15.</p>
<p>2011 <italic>Eoradiolites liratus</italic> CONRAD &#x2013; AYOUB-HANNAA, p. 120, pl. 11, figs. 1-3; text-fig. 3.19.</p>
<p>2011 <italic>Eoradiolites liratus</italic> CONRAD &#x2013; ZAKHERA, p. 419, pl. 2, figs. 1-4.</p>
<p>2014 <italic>Eoradiolites liratus</italic> CONRAD &#x2013; AYOUB-HANNAA <italic>et al</italic>., p. 106, pl. 9, figs. 1-3.</p>
<p><bold>Description:</bold> Sp&#x00E9;cimen de taille moyenne, de forme conique &#x00E0; section transverse sub-arrondie &#x00E0; sub-ovale. Des c&#x00F4;tes radiales, courant sur toute la longueur de la valve, crois&#x00E9;es par des lames de croissance.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: &#x00C9;gypte (Douvill&#x00E9;, <xref ref-type="bibr" rid="cit0092">1913</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa <italic>et al</italic>., <xref ref-type="bibr" rid="cit0025">2014</xref>), Italie (Masse <italic>et al</italic>., <xref ref-type="bibr" rid="cit0158">1998</xref>) et Iraq (Sadoouni, <xref ref-type="bibr" rid="cit0198">2005</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 3 sp&#x00E9;cimens dont 1 trouv&#x00E9; dans l&#x2019;unit&#x00E9; B et 2 dans l&#x2019;unit&#x00E9; C.</p>
<p>Genre: <italic>Sphaerulites</italic>
LAMARCK, <xref ref-type="bibr" rid="cit0147">1819</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Sphaerulites depressus</italic></bold> (BLANCKENHORN, <xref ref-type="bibr" rid="cit0043">1934</xref>) <xref ref-type="fig" rid="f0005">Fig. 5.5</xref></p>
<p>1934 <italic>Sphaerulites depressus</italic> BLANCKENHORN, p. 229, pl. 12, figs. 104-106.</p>
<p>2011 <italic>Sphaerulites depressus</italic> BLANCKENHORN &#x2013; ZAKHERA, p. 423, pl. 4, figs. 3-9.</p>
<p><bold>Description:</bold> Coquille large, en forme de vase, &#x00E0; cavit&#x00E9; pall&#x00E9;ale relativement petite, orn&#x00E9;e de nervures radiales tr&#x00E8;s fines et espac&#x00E9;es.</p>
<p><bold>Discussion:</bold> Le genre <italic>Sphaerulites</italic> est caract&#x00E9;ris&#x00E9; par des lames de croissance foliac&#x00E9;es et des bandes radiales d&#x00E9;prim&#x00E9;es et flanqu&#x00E9;es de plis (Masse <italic>et al</italic>., <xref ref-type="bibr" rid="cit0159">2007</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 2 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; C.</p>
<p>Ordre: Veneroida H. ADAMS &#x0026; A. ADAMS, 1856</p>
<p>Famille: Lucinidae FLEMING, <xref ref-type="bibr" rid="cit0106">1828</xref></p>
<p>Genre: <italic>Lucina</italic> BRUGUIERE, 1797</p>
<p>Esp&#x00E8;ce: <bold><italic>Lucina fallax</italic></bold> (FORBES, <xref ref-type="bibr" rid="cit0108">1846</xref>) <xref ref-type="fig" rid="f0005">Fig. 5.6</xref>.</p>
<p>1846 <italic>Lucina fallax</italic> sp. nov. FORBES, p. 143, pl. 17, fig. 8.</p>
<p>1871 <italic>Lucina fallax</italic> FORBES &#x2013; STOLICZKA, p. 256, pl. 13, figs. 13, 15-17; pl. 14, figs. 3-5, 7-8.</p>
<p>1953 <italic>Lucina fallax</italic> FORBES &#x2013; BARONI <italic>et al</italic>., p. 95, pl. 6, fig. 1.</p>
<p>1972 <italic>Lucina malwica</italic> sp. nov. CHIPLONKLAR &#x0026; BADVE, p. 111, pl. 3, fig. 27.</p>
<p>2006 <italic>Lucina fallax</italic> FORBES &#x2013; EL QOT, p. 70, pl. 14, figs. 7-8, 9a-b, 10a-b.</p>
<p>2011 <italic>Lucina fallax</italic> FORBES &#x2013; AYOUB-HANNAA, p. 120, pl. 11, figs. 7-8; text-fig. 3.22.</p>
<p><bold>Description:</bold> Coquille de forme sub-circulaire, l&#x00E9;g&#x00E8;rement in&#x00E9;quilat&#x00E9;rale &#x00E0; longueur et hauteur presque identiques. Crochet peu pointu et petit, occupant la partie m&#x00E9;diane de la coquille. Ornementation absente due au mauvais &#x00E9;tat de conservation.</p>
<p><bold>R&#x00E9;partition:</bold> Cenomanien: &#x00C9;gypte (Abdelhamid &#x0026; Azab, <xref ref-type="bibr" rid="cit0008">2003</xref>; El Qot, <xref ref-type="bibr" rid="cit0098">2006</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>), Jordanie (Berndt, <xref ref-type="bibr" rid="cit0039">2002</xref>) et Syrie (Conrad, <xref ref-type="bibr" rid="cit0064">1852</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 10 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0009">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n=10</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/ L</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">18.23-30.15</td>
<td align="center">17.27-29.56</td>
<td align="center">1.02-1.08</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">21.36-23.42</td>
<td align="center">21-23.13</td>
<td align="center">1.05</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Famille: Mactromyidae COX, <xref ref-type="bibr" rid="cit0073">1929</xref></p>
<p>Genre: <italic>Clisocolus</italic>
GABB, <xref ref-type="bibr" rid="cit0114">1869</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Clisocolus corrugatus</italic></bold> POPENOE, <xref ref-type="bibr" rid="cit0188">1937</xref></p>
<p><xref ref-type="fig" rid="f0005">Fig. 5.7</xref>.</p>
<p>1937 <italic>Clisocolus corrugatus</italic> sp. nov. POPENOE, p. 390, pl. 47, figs. 9, 10, 12.</p>
<p>2011 <italic>Clisocolus corrugatus</italic> POPENOE &#x2013; AYOUB-HANNAA, p. 120, pl. 11, fig. 9.</p>
<p>2014 <italic>Clisocolus corrugatus</italic> POPENOE &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 128, pl. 11, fig. 9.</p>
<p><bold>Description:</bold> Coquille moyenne, de forme sub-arrondie, in&#x00E9;quilat&#x00E9;rale, in&#x00E9;quivalve et peu gonfl&#x00E9;e. Sa longueur est presque &#x00E9;gale &#x00E0; sa hauteur. Des nervures l&#x00E9;g&#x00E8;res et concentriques composent l&#x2019;ornementation. Elles sont s&#x00E9;par&#x00E9;es par des interstices larges qui deviennent plus &#x00E9;troits dorsalement. Crochet important et fortement incurv&#x00E9;.</p>
<p><bold>R&#x00E9;partition:</bold> Cr&#x00E9;tac&#x00E9; Sup&#x00E9;rieur: Californie (Popenoe, <xref ref-type="bibr" rid="cit0188">1937</xref>) et &#x00C9;gypte (Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>)<italic>.</italic>
</p>
<p><bold>Mat&#x00E9;riel:</bold> 5 sp&#x00E9;cimens dont 3 r&#x00E9;colt&#x00E9;s dans l&#x2019;unit&#x00E9; A, et 2 dans la l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0010">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 5</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/ L</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">23.77-29.57</td>
<td align="center">20.66-26.88</td>
<td align="center">1.10-1.15</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">24.67-26.51</td>
<td align="center">23.95-24.05</td>
<td align="center">1.13</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Famille: Carditidae FLEMING, 1820 (<xref ref-type="bibr" rid="cit0106">1828</xref>)</p>
<p>Genre: <italic>Venericardia</italic>
LAMARCK, <xref ref-type="bibr" rid="cit0146">1801</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Venericardia forgemoli</italic></bold> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>)</p>
<p><xref ref-type="fig" rid="f0005">Fig. 5.8</xref>.</p>
<p>1862 <italic>Cardita forgemoli</italic> sp. nov. COQUAND, p. 199, pl. 14, figs. 14-15.</p>
<p>1862 <italic>Cardita delettrei</italic> sp. nov. COQUAND, p. 200, pl. 14, figs. 18-19.</p>
<p>1891 <italic>Cardita beuquei</italic> COQUAND &#x2013; P&#x00C9;RON, p. 264.</p>
<p>1912 <italic>Cardita Forgemoli</italic> COQUAND &#x2013; PERVINQUI&#x00C8;RE, p. 238, pl. 17, figs. 5-12.</p>
<p>1918 <italic>Cardita Forgemoli</italic> COQUAND &#x2013; GRECO, p. 32, pl. 4 (20), figs. 4-7.</p>
<p>1937 <italic>Cardita Forgemoli</italic> COQUAND &#x2013; TREVISAN, p. 94, pl. 7, figs. 10-13.</p>
<p>2004b <italic>Venericardia forgemoli</italic> COQUAND &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 2, fig. 10.</p>
<p>2006 <italic>Maghrebella forgemoli</italic> COQUAND &#x2013; EL QOT, p. 73, pl. 15, figs. 6-8.</p>
<p>2007b <italic>Maghrebella forgemoli</italic> COQUAND &#x2013; MEKAWY, p. 228, pl. 5, fig. 1.</p>
<p>2011 <italic>Venericardia</italic> ?<italic>forgemoli</italic> COQUAND &#x2013; AYOUB-HANNAA, p. 131, pl. 12, fig. 1.</p>
<p>2014 <italic>Venericardia forgemoli</italic> COQUAND &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 101, pl. 10, fig. 1.</p>
<p><bold>Description:</bold> Coquille de taille moyenne, &#x00E0; contour triangulaire, in&#x00E9;quilat&#x00E9;rale, gonfl&#x00E9;e, plus haute que longue. Crochet important, relativement large et inclin&#x00E9;. Ornementation repr&#x00E9;sent&#x00E9;e par des nervures radiales bien marqu&#x00E9;es et s&#x00E9;par&#x00E9;es par des interstices &#x00E9;troits.</p>
<p><bold>Discussion:</bold> Les similitudes (en terme de contour, de taille et d&#x2019;ornementation) entre <italic>Cardita beuquei</italic> (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>), <italic>Cardita delettrei</italic> (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>) et <italic>Cardita forgemoli</italic> amen&#x00E8;rent Pervinqui&#x00E8;re (<xref ref-type="bibr" rid="cit0181">1912</xref>) &#x00E0; les consid&#x00E9;rer comme synonymes de <italic>Cardita forgemoli</italic>.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>), Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Greco, <xref ref-type="bibr" rid="cit0125">1918</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>) et Italie (Trevisan, <xref ref-type="bibr" rid="cit0219">1937</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen trouv&#x00E9; dans l&#x2019;unit&#x00E9; C.</p>
<p>Famille: Cardiidae LAMARCK, 1809</p>
<p>Genre: <italic>Granocardium</italic> GABB, 1868</p>
<p>Esp&#x00E8;ce: <bold><italic>Granocardium carolinum</italic></bold> (D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0088">1843</xref>) <xref ref-type="fig" rid="f0005">Fig. 5.9</xref>.</p>
<p>1843 <italic>Cardium carolinum</italic> sp. nov. D&#x2019;ORBIGNY, p. 29, pl. 245.</p>
<p>1981 <italic>Granocardium</italic> cf. <italic>carolinum</italic> D&#x2019;ORBIGNY &#x2013; AMARD <italic>et al</italic>., p. 75, pl. 1, figs. 1-2.</p>
<p>2006 <italic>Granocardium</italic> (?<italic>Criocardium</italic>) sp. PERRILLIAT <italic>et al</italic>., p. 101, figs. 19-24.</p>
<p>2011 <italic>Granocardium</italic> (<italic>Granocardium</italic>) <italic>carolinum</italic> D&#x2019;ORBIGNY &#x2013; AYOUB-HANNAA, p. 131, pl. 12, figs. 2-3.</p>
<p>2014 <italic>Granocardium</italic> (<italic>Granocardium</italic>) <italic>carolinum</italic> D&#x2019;ORBIGNY &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 113, pl. 10, figs. 2-3.</p>
<p><bold>Description:</bold> Coquille de taille moyenne, souvent ovale et l&#x00E9;g&#x00E8;rement plus haute que longue. Elle est fortement gonfl&#x00E9;e, &#x00E9;quivalve et l&#x00E9;g&#x00E8;rement &#x00E9;quilat&#x00E9;rale. L&#x2019;ornementation se compose de fils radiaux fins. Des interstices, &#x00E9;troits, se d&#x00E9;veloppent pr&#x00E8;s de la marge ventrale. Crochet important, presque central, sub-triangulaire et incurv&#x00E9; post&#x00E9;rieurement.</p>
<p><bold>R&#x00E9;partition:</bold> Cr&#x00E9;tac&#x00E9; Sup&#x00E9;rieur: France (D&#x2019;Orbigny, <xref ref-type="bibr" rid="cit0088">1843</xref>). C&#x00E9;nomanien sup&#x00E9;rieur-Turonien inferieur: Jordanie (PerrillIiat <italic>et al</italic>., <xref ref-type="bibr" rid="cit0182">2006</xref>). C&#x00E9;nomanien-Turonien: &#x00C9;gypte (Ayoub-Hanna, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hanna &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 6 sp&#x00E9;cimens dont 1 trouv&#x00E9; dans l&#x2019;unit&#x00E9; A et 5 dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0011">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 6</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">10.11-19.28</td>
<td align="center">8.64-18.98</td>
<td align="center">1-1.17</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">14.41-17.05</td>
<td align="center">12.65-13.83</td>
<td align="center">1.14</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Esp&#x00E8;ce: <bold><italic>Granocardium desvauxi</italic></bold> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>)</p>
<p><xref ref-type="fig" rid="f0005">Fig. 5.10</xref>.</p>
<p>1862 <italic>Cardium desvauxi</italic> sp. nov. COQUAND, p. 206, pl. 11, figs. 3-4.</p>
<p>1912 <italic>Cardium</italic> (<italic>Trachycardium</italic>) <italic>desvauxi</italic> COQUAND &#x2013; PERIVINQUI&#x00C8;RE, p. 260.</p>
<p>1962 <italic>Granocardium hassani</italic> sp. nov. ABBASS, p. 122, pl. 20, figs. 2-3.</p>
<p>2011 <italic>Granocardium</italic> (<italic>Granocardium</italic>) <italic>desvauxi</italic> COQUAND &#x2013; AYOUB-HANNAA, p. 131, pl. 12, fig. 4.</p>
<p>2014 <italic>Granocardium</italic> (<italic>Granocardium</italic>) <italic>desvauxi</italic> COQUAND &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 114, pl. 10, fig. 4.</p>
<p><bold>Description:</bold> Coquille triangulaire, renfl&#x00E9;e et presque in&#x00E9;quilat&#x00E9;rale. Elle a un c&#x00F4;t&#x00E9; buccal excav&#x00E9; et court, et un c&#x00F4;t&#x00E9; anal tr&#x00E8;s oblique et car&#x00E9;n&#x00E9; &#x00E0; l&#x2019;ext&#x00E9;rieur. Crochet recourb&#x00E9;. Ornementation absente.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Alg&#x00E9;rie (Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>), Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), et &#x00C9;gypte (Abbass, <xref ref-type="bibr" rid="cit0001">1962</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 6 sp&#x00E9;cimens r&#x00E9;colt&#x00E9;s dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0012">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 6</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">19.22-31.95</td>
<td align="center">14.78-27.78</td>
<td align="center">1.15-1.30</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">22.05-26.60</td>
<td align="center">17.43-21.45</td>
<td align="center">1.20-1.24</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Esp&#x00E8;ce: <bold><italic>Granocardium (Granocardium) productum</italic></bold> (J. DE C. SOWERBY, 1832)</p>
<p><xref ref-type="fig" rid="f0005">Fig. 5.11</xref>.</p>
<p>1832 <italic>Cardium productum</italic> J. DE C. SOWERBY, pl. 12, figs. 5-7; Text-fig. 3.23.</p>
<p>1832 <italic>Cardium productum</italic> sp. nov. J. DE C. SOWERBY, p. 417, pl. 39, fig. 15.</p>
<p>1850 <italic>Cardium olisiponensis</italic> sp. nov. SHARPE, p. 181, pl. 14, figs. 4a-b.</p>
<p>1917 <italic>Cardium productum</italic> SOWERBY &#x2013; FOURTAU, p. 81.</p>
<p>1963 <italic>Cardium</italic> aff. <italic>productum</italic> SOWERBY &#x2013; FAWZI, p. 70.</p>
<p>1971 <italic>Trachycardium productum</italic> SOWERBY &#x2013; COLLIGNON, p. 41, pl. H, fig. 10.</p>
<p>1993 <italic>Granocardium productum</italic> SOWERBY &#x2013; DHONDT &#x0026; DIENI, p. 229, pl. 14, figs. 4-9b.</p>
<p>2004b <italic>Granocardium hassani</italic> ABBASS &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 2, fig. 11.</p>
<p>2006 <italic>Granocardium productum</italic> SOWERBY &#x2013; EL QOT, p. 77, pl. 16, figs. 2a-b, 3.</p>
<p>2011 <italic>Granocardium</italic> (<italic>Granocardium</italic>) <italic>productum</italic> SOWERBY &#x2013; AYOUB-HANNAA, p. 131, pl. 12, figs. 5-7; text-fig. 3.23.</p>
<p>2014 <italic>Granocardium</italic> (<italic>Granocardium</italic>) <italic>productum</italic> SOWERBY &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 114, pl. 10, figs. 5-7.</p>
<p><bold>Description:</bold> Moule interne de taille assez grande, plus haute que longue, tr&#x00E9;s convexe. Crochet relativement large et incurv&#x00E9;.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Portugal (Sharpe, <xref ref-type="bibr" rid="cit0205">1850</xref>; Soares, <xref ref-type="bibr" rid="cit0212">1966</xref>), Alg&#x00E9;rie (Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0037">2016</xref>), &#x00C9;gypte (Fawzi, <xref ref-type="bibr" rid="cit0102">1963</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0025">2014</xref>) et Italie (Dhondt &#x0026; Dieni, <xref ref-type="bibr" rid="cit0084">1993</xref>). Maestrichtien: Alg&#x00E9;rie (Collignon, <xref ref-type="bibr" rid="cit0063">1971</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0013">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 1</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/L</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">38.46</td>
<td align="center">27.47</td>
<td align="center">1.40</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Famille: Arcticidae NEWTON, 1891</p>
<p>Genre: <italic>Tenea</italic>
CONRAD, <xref ref-type="bibr" rid="cit0065">1870</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Tenea delettrei</italic></bold> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) <xref ref-type="fig" rid="f0006">Fig. 6.1</xref>.</p>
<fig id="f0006">
<label>Fig. 6</label>
<caption><p>1. <italic>Tenea delletrei</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) de l&#x2019;unit&#x00E9; B. 2. <italic>Turritella</italic> cf. <italic>difficilis</italic> (D&#x2019;ORBIGNY, 1842) de l&#x2019;unit&#x00E9; A. 3. <italic>Campanile (Campanile) ganesha</italic> (NOETLING, <xref ref-type="bibr" rid="cit0174">1897</xref>) dans l&#x2019;unit&#x00E9; A. 4. <italic>Cimolithium tenouklense</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) de l&#x2019;unit&#x00E9; B: 4a- vue dorsale, 4b- vue aperturale, 4c- vue basale. 5. <italic>Ampullina? abeihensis</italic> (HAMLIN, <xref ref-type="bibr" rid="cit0129">1884</xref>) dans l&#x2019;unit&#x00E9; C: 5a- vue dorsale, 5b,c- vue aperturale. 6. <italic>Aporrhais dutrugei</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) de l&#x2019;unit&#x00E9; A: 6a- vue aperturale, 6b- vue dorsale. 7. <italic>Aporrhais</italic> sp. de l&#x2019;unit&#x00E9; C: 7a, c- vue aperturale, 7b- vue dorsale. 8. <italic>Columbellina</italic> (Columbellina) fusiformis (DOUVILL&#x00C9;, <xref ref-type="bibr" rid="cit0093">1916</xref>) de l&#x2019;unit&#x00E9; C: 8a- vue aperturale, 8b- vue dorsale. 9. <italic>Pterodonta deffisi</italic> (THOMAS &#x0026; P&#x00C9;RON, <xref ref-type="bibr" rid="cit0179">1889</xref>) de l&#x2019;unit&#x00E9; B: 9a- vue aperturale, 9b- vue dorsale. 10. <italic>Pterodonta elongata</italic> (D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0088">1843</xref>) de l&#x2019;unit&#x00E9; A: 10a- vue aperturale, 10b- autre vue aperturale, 11. <italic>Tylostoma (Tylostoma) globosum</italic> (SHARPE, 1849) de l&#x2019;unit&#x00E9; A. 11a- vue sommitale, 11b- vue aperturale, 11c- vue dorsale. 12. <italic>Tylostoma pallaryi</italic> (P&#x00C9;RON &#x0026; FOURTAU, <xref ref-type="bibr" rid="cit0109">1904</xref>) de l&#x2019;unit&#x00E9; C: 12a- vue aperturale, 12b- vue dorsale. 13. <italic>Nerinea texana</italic> (ROEMER, <xref ref-type="bibr" rid="cit0192">1849</xref>) de l&#x2019;unit&#x00E9; B. 14. <italic>Nerinea</italic>. sp. de l&#x2019;unit&#x00E9; A: 14a- vue aperturale, 14b- vue dorsale. 14c- vue sommitale. (chaque barre correspond &#x00E0; 1 cm).</p></caption>
<graphic xlink:href="EG201810-82-g006.tif" xmlns:xlink="http://www.w3.org/1999/xlink"/>
</fig>
<p>1862 <italic>Venus delettrei</italic> sp. nov. COQUAND, p.194, pl. 8, figs. 3-4</p>
<p>1862 <italic>Venus forgemoli</italic> sp. nov. COQUAND, p. 194, pl. 8, figs. 7-8.</p>
<p>1912 <italic>Dosinia delettrei</italic> COQUAND &#x2013; PERVINQUI&#x00C8;RE, p. 270, pl. 20, figs. 4-8.</p>
<p>1918 <italic>Dosinia delettrei</italic> COQUAND &#x2013; GRECO, p. 49 (231), pl. 5 (21), figs. 6-10.</p>
<p>1934 <italic>Dosinia delettrei</italic> COQUAND &#x2013; BLANCKENHORN, p. 250.</p>
<p>1937 <italic>Dosinia delettrei</italic> COQUAND &#x2013; TREVISAN, p. 113, pl. 7, figs. 29-31.</p>
<p>1937 <italic>Dosinia forgemoli</italic> COQUAND &#x2013; TREVISAN, p. 114, pl. 7, figs. 32-33.</p>
<p>2004b <italic>Dosinia delettrei</italic> COQUAND &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 3, fig. 7.</p>
<p>2006 <italic>Tenea delettrei</italic> COQUAND &#x2013; EL QOT, p. 84, pl. 17, figs. 4-9; text-fig. 11b.</p>
<p>2007b <italic>Tenea delettrei</italic> COQUAND &#x2013; MEKAWY, p. 233, pl. 5, fig. 11.</p>
<p>2011 <italic>Tenea delettrei</italic> COQUAND &#x2013; AYOUB-HANNAA, p. 141, pl. 13, figs. 5-7; text-fig. 3.25.</p>
<p>2014 <italic>Tenea delettrei</italic> COQUAND &#x2013; AYOUB-HANNAA &#x0026; F&#x00DC;RSICH, p. 119, pl. 11, figs. 5-7.</p>
<p><bold>Description:</bold> Coquille de taille moyenne, de forme ovale et renfl&#x00E9;e. Elle pr&#x00E9;sente une petite diff&#x00E9;rence entre sa largeur et sa hauteur. Crochet long et &#x00E9;troit par rapport &#x00E0; sa taille. Ornementation mal pr&#x00E9;serv&#x00E9;e.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Greco, <xref ref-type="bibr" rid="cit0125">1918</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa <italic>et al</italic>., <xref ref-type="bibr" rid="cit0025">2014</xref>), Italie (Trevisan, <xref ref-type="bibr" rid="cit0219">1937</xref>) et Syrie (Blackenhorn, <xref ref-type="bibr" rid="cit0043">1934</xref>). C&#x00E9;nomanien: Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 5 sp&#x00E9;cimens dont 3 r&#x00E9;colt&#x00E9;s dans l&#x2019;unit&#x00E9; B et 2 dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0014">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 5</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">H/ L</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">23.77-29.57</td>
<td align="center">15.65-31.80</td>
<td align="center">0.93-1.32</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">24.67-26.51</td>
<td align="center">21.45-24.20</td>
<td align="center">1.10-1.15</td>
</tr>
</tbody>
</table>
</table-wrap>
</sec>
<sec id="sec6.3">
<title>Gast&#x00E9;ropodes</title>
<p>La classification syst&#x00E9;matique utilis&#x00E9;e est celle de Bouchet &#x0026; Rocroi (<xref ref-type="bibr" rid="cit0045">2005</xref>). H, D, HL, HA et WA d&#x00E9;signent respectivement la hauteur, le diam&#x00E8;tre du sp&#x00E9;cimen, la hauteur du dernier tour, la hauteur de l&#x2019;ouverture et sa largeur, tous exprim&#x00E9;s en (mm). Le nombre de tours et l&#x2019;angle pleural sont respectivement abr&#x00E9;g&#x00E9;s par Nw et PA&#x00BA;.</p>
<p>Famille: Turritellidae LOV&#x00C9;N, <xref ref-type="bibr" rid="cit0154">1847</xref></p>
<p>Genre: <italic>Turritella</italic>
LAMARCK, <xref ref-type="bibr" rid="cit0145">1799</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Turritella</italic> cf. <italic>difficilis</italic></bold> (D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0087">1842</xref>) <xref ref-type="fig" rid="f0006">Fig. 6.2</xref>.</p>
<p>cf. 1927 <italic>Turritella</italic> cf. <italic>difficilis</italic> D&#x2019;ORBIGNY &#x2013; BLANCKENHORN, p. 141, pl. 3, fig. 37.</p>
<p>cf. 1971 <italic>Turritella</italic> cf. <italic>difficilis</italic> D&#x2019;ORBIGNY &#x2013; COLLIGNON, p. 6, pl. B, fig. 1.</p>
<p>2011 <italic>Turritella</italic> cf. <italic>difficilis</italic> D&#x2019;ORBIGNY &#x2013; AYOUB-HANNAA, p. 165, pl. 15, figs. 5-6.</p>
<p><bold>Description:</bold> Moule de petite taille, haute et spiral&#x00E9;e, compos&#x00E9;e de trois tours de recouvrement. Spirales l&#x00E9;g&#x00E8;rement convexes, s&#x00E9;par&#x00E9;es par des sutures mod&#x00E9;r&#x00E9;ment profondes et obliques. Ornementation non pr&#x00E9;serv&#x00E9;e.</p>
<p><bold>Discussion:</bold> Selon Blanckenhorn (<xref ref-type="bibr" rid="cit0042">1927</xref>), <italic>Turritella</italic> cf. <italic>difficilis</italic> se distingue par son contour g&#x00E9;n&#x00E9;ral, la convexit&#x00E9; des spirales et l&#x2019;angle de suture.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: &#x00C9;gypte (Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>) et Syrie (Blanckenhorn, <xref ref-type="bibr" rid="cit0042">1927</xref>). Maestrichtien: Alg&#x00E9;rie (Collignon, <xref ref-type="bibr" rid="cit0063">1971</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9;</p>
<p>Famille: Campanilidae DOUVILL&#x00C9;, <xref ref-type="bibr" rid="cit0091">1904</xref></p>
<p>Genre: <italic>Campanile</italic> BAYLE in P. FISCHER, 1884</p>
<p>Esp&#x00E8;ce: <bold><italic>Campanile (Campanile) ganesha</italic></bold> (NOETLING, <xref ref-type="bibr" rid="cit0174">1897</xref>) <xref ref-type="fig" rid="f0006">Fig. 6.3</xref>.</p>
<p>1897 <italic>Nerinea ganesha</italic> sp. nov. NOETLING, p. 58, pl. 15, figs. 1-2; pl. 16, figs. 1-2.</p>
<p>1916 <italic>Nerinea ganesha</italic> NOETLING-GRECO, p. 121 (63), pl. 15 (7), figs. 10-11.</p>
<p>1971 <italic>Nerinea (Ptygmatis) ganesha</italic> NOETLING &#x2013; COLLIGNON, p. 17 (159), pl. C, fig. 5.</p>
<p>1974 <italic>Campanile</italic> (<italic>Campanile</italic>) <italic>ganesha</italic> NOETLING &#x2013; ALBANESI &#x0026; BUSSON, p. 299.</p>
<p>2006 <italic>Campanile</italic> (<italic>Campanile</italic>) <italic>ganesha</italic> NOETLING &#x2013; EL QOT, p. 98, pl. 19, figs. 12, 14.</p>
<p>2011 <italic>Campanile</italic> (<italic>Campanile</italic>) <italic>ganesha</italic> NOETLING &#x2013; AYOUB-HANNAA, pl. 15, figs. 7-8; text-fig. 3.29.</p>
<p><bold>Description:</bold> Moule de taille moyenne, h&#x00E9;licospirale &#x00E0; surface convexe. La spire est constitu&#x00E9;e de plusieurs tours; le recouvrement est marqu&#x00E9; par des sutures peu profondes et se comblant vers l&#x2019;apex. Ornementation non conserv&#x00E9;e.</p>
<p><bold>Discussion:</bold> <italic>Campanile bussoni</italic> (ALBANESI &#x0026; BUSSON, <xref ref-type="bibr" rid="cit0013">1974</xref>) r&#x00E9;colt&#x00E9; en Alg&#x00E9;rie et <italic>Cerithium inauguratum</italic> (STOLICZKA, 1902) du d&#x00E9;sert &#x00E9;gyptien, ressemblent beaucoup &#x00E0; notre mat&#x00E9;riel mais en diff&#x00E8;rent par le nombre de tours (moins nombreux), la taille (moins grande) et les sutures (moins larges et moins profondes).</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien&#x2013;Maestrichtien: &#x00C9;gypte (Greco, <xref ref-type="bibr" rid="cit0124">1916</xref>; El Qot, <xref ref-type="bibr" rid="cit0098">2006</xref>; Ayoub-Hanna, <xref ref-type="bibr" rid="cit0023">2011</xref>). Maestrichtien: Alg&#x00E9;rie (Collignon, <xref ref-type="bibr" rid="cit0063">1971</xref>; Albanesi &#x0026; Busson, <xref ref-type="bibr" rid="cit0013">1974</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 3 sp&#x00E9;cimens dont 2 trouv&#x00E9;s dans l&#x2019;unit&#x00E9; A et 1 dans l&#x2019;unit&#x00E9; C.</p>
<p>Ordre et Famille: incertain</p>
<p>Genre: <italic>Cimolithium</italic> COSSMANN, 1906</p>
<p>Esp&#x00E8;ce: <bold><italic>Cimolithium tenouklense</italic></bold> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) <xref ref-type="fig" rid="f0006">Fig. 6.4</xref>.</p>
<p>1862 <italic>Turritella tenouklensis</italic> sp. nov.COQUAND, p. 176, pl. 4, fig. 6.</p>
<p>1889 <italic>Cerithium tenouklense</italic> COQUAND &#x2013; P&#x00C9;RON, pl. 20, fig. 2.</p>
<p>1912 <italic>Cerithium tenouklense</italic> COQUAND &#x2013; PERVINQUI&#x00C8;RE, p. 16, pl. 1, figs. 20-22.</p>
<p>1916 <italic>Cerithium</italic> (<italic>Cimolithium</italic>) <italic>Tenouklense</italic> COQUAND &#x2013; GRECO, p. 154 (96), pl. 19 (11), figs. 3-5.</p>
<p>1927 <italic>Cerithium tenouklense</italic> COQUAND &#x2013; BLANCKENHORN, p. 162, pl. 8 (4), figs. 77-80.</p>
<p>2002 <italic>Cimolithium tenouklense</italic> COQUAND &#x2013; ZAKHERA, p. 310, fig. 5.</p>
<p>2004b <italic>Cimolithium tenouklense</italic> COQUAND &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 5, fig. 2.</p>
<p>2006 <italic>Cimolithium tenouklense</italic> COQUAND &#x2013; EL QOT, p. 97, pl. 19, fig. 8. 2007a <italic>Cimolithium tenouklense</italic> COQUAND &#x2013; MEKAWY, p. 157, pl. 1, fig. 5. 2011 <italic>Cimolithium tenouklense</italic> COQUAND &#x2013; AYOUB-HANNAA, p. 167, pl. 16, figs. 1-3.</p>
<p><bold>Description:</bold> Moule comprenant 7 tours arrondis vers le haut et sub-car&#x00E9;n&#x00E9;s &#x00E0; leur base, avec une suture profonde qui les s&#x00E9;pare. Canal ant&#x00E9;rieur m&#x00E9;dian, court bien distinct.</p>
<p><bold>Discussion:</bold> Selon Coquand (1879), cette esp&#x00E8;ce peut &#x00EA;tre confondue avec <italic>Cerihium gaudae</italic>. Elle se distingue par sa forme beaucoup plus allong&#x00E9;e, plus gr&#x00EA;le, et par un plus grand nombre de tours.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>; Busson <italic>et al</italic>., <xref ref-type="bibr" rid="cit0051">1999</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0038">2017</xref>), Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Greco, <xref ref-type="bibr" rid="cit0124">1916</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>) et Syrie (Blackenhorn, <xref ref-type="bibr" rid="cit0042">1927</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 12 sp&#x00E9;cimens dont 9 r&#x00E9;colt&#x00E9;s dans l&#x2019;unit&#x00E9; A, 1 dans l&#x2019;unit&#x00E9; B, et 2 dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0015">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="center">n=12</td>
<td align="center">H</td>
<td align="center">D</td>
<td align="center">HL</td>
<td align="center">HA</td>
<td align="center">WA</td>
<td align="center">PA&#x00B0;</td>
<td align="center">Nw</td>
<td align="center">D/H</td>
<td align="center">HL/H</td>
<td align="center">WA/HA</td>
</tr>
<tr>
<td align="left">Etendue</td>
<td align="center">17-39</td>
<td align="center">15-24</td>
<td align="center">6-11.50</td>
<td align="center">4.50-10.50</td>
<td align="center">5-15</td>
<td align="center">32&#x00B0;-42&#x00B0;</td>
<td align="center">5-7</td>
<td align="center">0.50-0.82</td>
<td align="center">0.3-0.4</td>
<td align="center">1.10-1.40</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">28</td>
<td align="center">18.50</td>
<td align="center">8.75</td>
<td align="center">7.63</td>
<td align="center">8.33</td>
<td align="center">37&#x00B0;</td>
<td align="center">6</td>
<td align="center">0.70</td>
<td align="center">0.35</td>
<td align="center">1.26</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Famille: Ampullinidae COSSMANN, <xref ref-type="bibr" rid="cit0069">1919</xref></p>
<p>Genre: <italic>Ampullina</italic> BOWDICH, 1822</p>
<p>Esp&#x00E8;ce: <bold><italic>Ampullina? abeihensis</italic></bold> (HAMLIN, <xref ref-type="bibr" rid="cit0129">1884</xref>)</p>
<p><xref ref-type="fig" rid="f0006">Fig. 6.5</xref>.</p>
<p>1884 <italic>Amauropsis abeihensis</italic> sp. nov. HAMLIN, p. 17, pl. 1, fig. 2.</p>
<p>1890 <italic>Amauropsis abeihensis</italic> HAMLIN &#x2013; BLANCKENHORN, p. 103.</p>
<p>1927 <italic>Natica</italic> (<italic>Euspira</italic>) <italic>abeihensis</italic> HAMLIN &#x2013; BLANCKENHORN, p. 131, pl. 1, figs. 21-22.</p>
<p>1939 <italic>Tylostoma</italic> (<italic>Odostomopis</italic>) <italic>abeihensis</italic> HAMLIN &#x2013; DELPEY, p. 80, fig. 55.</p>
<p>2011 <italic>Ampullina</italic>? <italic>abeihensis</italic> HAMLIN &#x2013; AYOUB-HANNAA, p. 171, pl. 16, figs. 4-5.</p>
<p><bold>Description:</bold> Coquille relativement grande, &#x00E0; enroulement bas, compos&#x00E9; de trois spires de recouvrement soulign&#x00E9;es de sutures assez profondes. Le tour terminal repr&#x00E9;sente deux tiers de la hauteur totale. Spires d&#x00E9;croissant rapidement vers l&#x2019;apex, avec des surfaces droites &#x00E0; l&#x00E9;g&#x00E8;rement convexes. L&#x00E8;vre externe plus convexe que la l&#x00E8;vre interne. Apex aigu &#x00E0; base plate. Ornementation mal conserv&#x00E9;e.</p>
<p><bold>R&#x00E9;partition:</bold> Aptien: Syrie et &#x00C9;gypte (Blanckenhorn, <xref ref-type="bibr" rid="cit0042">1927</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen trouv&#x00E9; dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0016">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 1</td>
<td align="center">H</td>
<td align="center">D</td>
<td align="center">HL</td>
<td align="center">HA</td>
<td align="center">WA</td>
<td align="center">PA&#x00B0;</td>
<td align="center">Nw</td>
<td align="center">D/H</td>
<td align="center">HL/H</td>
<td align="center">WA/HA</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">21</td>
<td align="center">18. 5</td>
<td align="center">17</td>
<td align="center">12.50</td>
<td align="center">9</td>
<td align="center">79&#x00B0;</td>
<td align="center">3</td>
<td align="center">0.88</td>
<td align="center">0.80</td>
<td align="center">0.72</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Famille: Aporrhaidae GRAY, <xref ref-type="bibr" rid="cit0123">1850</xref></p>
<p>Genre: <italic>Aporrhais</italic>
DA COSTA, <xref ref-type="bibr" rid="cit0075">1778</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Aporrhais dutrugei</italic></bold> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>)</p>
<p><xref ref-type="fig" rid="f0006">Fig. 6.6</xref>.</p>
<p>1862 <italic>Rostellaria dutrugei</italic> sp. nov. COQUAND, p. 185, pl. 5, fig. 4.</p>
<p>1889 <italic>Pterodonta</italic> (?) <italic>dutrugei</italic> COQUAND &#x2013; PERON, p. 83, pl. 20, figs. 15-16.</p>
<p>1912 <italic>Aporrhais</italic> (?) <italic>dutrugei</italic> COQUAND &#x2013; PERVINQUI&#x00C8;RE, p. 24, pl. 2, figs. 1-7.</p>
<p>1916 <italic>Aporrhais</italic> (?) <italic>dutrugei</italic> COQUAND &#x2013; GRECO, p. 155 (97).</p>
<p>1927 <italic>Pterodonticeras dutrugei</italic> COQUAND &#x2013; BLANCKENHORN, p. 168, pl. 9 (5), fig. 93.</p>
<p>1937 <italic>Aporrhais</italic> (?) <italic>dutrugei</italic> COQUAND &#x2013; TREVISAN, p. 35, pl. 2, fig. 8.</p>
<p>2004b <italic>Aporrhais dutrugei</italic> COQUAND &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 5, fig. 6.</p>
<p>2006 <italic>Aporrhais dutrugei</italic> COQUAND &#x2013; EL QOT, p. 100, pl. 20, figs. 7-8.</p>
<p>2007a <italic>Aporrhais dutrugei</italic> COQUAND &#x2013; MEKAWY, p. 160, pl. 1, fig. 15.</p>
<p>2007a <italic>Aporrhais dutrugei</italic> COQUAND &#x2013; MEKAWY, p. 160, pl. 1, fig. 15.</p>
<p>2011 <italic>Aporrhais dutrugei</italic> COQUAND &#x2013; AYOUB-HANNAA, p. 177, pl. 17, figs. 3-4.</p>
<p><bold>Description:</bold> Gast&#x00E9;ropode de petite taille, &#x00E0; spire haute compos&#x00E9;e de deux tours convexes et aplatis, s&#x00E9;par&#x00E9;s par des sutures moyennement profondes. Ouverture mod&#x00E9;r&#x00E9;e mais &#x00E9;troite. Ornementation totalement absente.</p>
<p><bold>Discussion:</bold> Malgr&#x00E9; l&#x2019;attribution de notre sp&#x00E9;cimen &#x00E0; <italic>Aporrhais dutrugei</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>), il comporte, malgr&#x00E9; tout, certaines diff&#x00E9;rences: une forme plus petite, des sutures plus profondes et une forme plus aplatie des tours.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>), Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>), &#x00C9;gypte (Greco, <xref ref-type="bibr" rid="cit0124">1916</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>), Italie (Trevisan, <xref ref-type="bibr" rid="cit0219">1937</xref>) et Syrie (Blanckenhorn, <xref ref-type="bibr" rid="cit0042">1927</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen trouv&#x00E9; dans l&#x2019;unit&#x00E9; A.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0017">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 1</td>
<td align="center">H</td>
<td align="center">D</td>
<td align="center">HL</td>
<td align="center">HA</td>
<td align="center">WA</td>
<td align="center">PA&#x00B0;</td>
<td align="center">Nw</td>
<td align="center">D/H</td>
<td align="center">HL/H</td>
<td align="center">WA/HA</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">15</td>
<td align="center">10.50</td>
<td align="center">9</td>
<td align="center">7</td>
<td align="center">4</td>
<td align="center">43&#x00B0;</td>
<td align="center">3</td>
<td align="center">0.70</td>
<td align="center">0.60</td>
<td align="center">0.44</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Esp&#x00E8;ce: <bold><italic>Aporrhais</italic> sp</bold>.</p>
<p><xref ref-type="fig" rid="f0006">Fig. 6.7</xref>.</p>
<p><bold>Description:</bold> Gast&#x00E9;ropode de taille moyenne, haut et spiral&#x00E9;. Spire compos&#x00E9;e de cinq tours convexes, s&#x00E9;par&#x00E9;s par des sutures peu profondes. Ouverture longue et &#x00E9;troite, ovale &#x00E0; l&#x00E8;vre externe inachev&#x00E9;e. Ornementation absente.</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0018">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n=1</td>
<td align="center">H</td>
<td align="center">D</td>
<td align="center">HL</td>
<td align="center">HA</td>
<td align="center">WA</td>
<td align="center">PA&#x00B0;</td>
<td align="center">Nw</td>
<td align="center">D/H</td>
<td align="center">HL/H</td>
<td align="center">WA/HA</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">31</td>
<td align="center">14</td>
<td align="center">17</td>
<td align="center">10</td>
<td align="center">4</td>
<td align="center">50&#x00B0;</td>
<td align="center">5</td>
<td align="center">0.45</td>
<td align="center">0.55</td>
<td align="center">0.40</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Famille: Colombellinidae FISCHER, 1884</p>
<p>Genre: <italic>Columbellina</italic> D&#x2019;ORBIGNY, 1842</p>
<p>Esp&#x00E8;ce: <bold><italic>Columbellina (Columbellina) fusiformis</italic></bold> (DOUVILL&#x00C9;, <xref ref-type="bibr" rid="cit0093">1916</xref>) <xref ref-type="fig" rid="f0006">Fig. 6.8</xref>.</p>
<p>1916 <italic>Columbellina fusiformis</italic> sp. nov. DOUVILL&#x00C9;, p. 132, pl. 18, figs. 1-3.</p>
<p>2002 <italic>Columbellina fusiformis</italic> DOUVILL&#x00C9; &#x2013; BERNDT, p. 144, pl. 9, fig. 8.</p>
<p>2004b <italic>Columbellina</italic> (<italic>Columbellina</italic>) <italic>fusiformis</italic> DOUVILL&#x00C9; &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 5, fig. 9.</p>
<p>2011 <italic>Columbellina</italic> (<italic>Columbellina</italic>) <italic>fusiformis</italic> DOUVILL&#x00C9; &#x2013; AYOUB-HANNAA, p. 134, fig. 13.</p>
<p><bold>Description:</bold> Coquille conique fusiforme mod&#x00E9;r&#x00E9;ment haute. Quatre spires de recouvrement l&#x00E9;g&#x00E8;rement convexes. Sutures peu profondes. Apex interrompu. Base presque pointue. Ouverture &#x00E9;troite et l&#x00E9;g&#x00E8;rement ovale. Ornementation &#x00E9;ffac&#x00E9;e.</p>
<p><bold>Discussion:</bold> Une silhouette fusiforme ov&#x00E9;e &#x00E0; ouverture ovale, une base pointue et des nervures axiales aux fines cordes spiral&#x00E9;es sont les caract&#x00E9;ristiques principales de <italic>Columbellina fusiformis</italic>.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: &#x00C9;gypte (Douvill&#x00E9;, <xref ref-type="bibr" rid="cit0093">1916</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>) et Jordanie (Berndt, <xref ref-type="bibr" rid="cit0039">2002</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen trouv&#x00E9; dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0019">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 1</td>
<td align="center">H</td>
<td align="center">D</td>
<td align="center">HL</td>
<td align="center">HA</td>
<td align="center">WA</td>
<td align="center">PA&#x00B0;</td>
<td align="center">Nw</td>
<td align="center">D/H</td>
<td align="center">HL/H</td>
<td align="center">WA/HA</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">25</td>
<td align="center">13</td>
<td align="center">12</td>
<td align="center">9</td>
<td align="center">5</td>
<td align="center">55&#x00B0;</td>
<td align="center">4</td>
<td align="center">0.52</td>
<td align="center">0.48</td>
<td align="center">0.55</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Genre: <italic>Pterodonta</italic> D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0087">1842</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Pterodonta deffisi</italic></bold> (THOMAS &#x0026; P&#x00C9;RON, <xref ref-type="bibr" rid="cit0179">1889</xref>)</p>
<p><xref ref-type="fig" rid="f0006">Fig. 6.9</xref>.</p>
<p>1889 <italic>Pterodonta deffisi</italic> sp. nov. THOMAS &#x0026; P&#x00C9;RON in PERON, p. 83, pl. 20, figs. 17-18.</p>
<p>1916 <italic>Pterodonta deffisi</italic> THOMAS &#x0026; P&#x00C9;RON &#x2013; GRECO, p. 158 (100), pl. 19 (11), figs. 6-9.</p>
<p>?1927 <italic>Pterodonta homarensis</italic> sp. nov. &#x2013; BLANCKENHORN, p. 169, pl. 9 (5), fig. 94.</p>
<p>1934 <italic>Pterodonta deffisi</italic> THOMAS &#x0026; P&#x00C9;RON &#x2013; BLANCKENHORN, p. 272.</p>
<p>2002 <italic>Pterodonta deffisi</italic> THOMAS &#x0026; P&#x00C9;RON &#x2013; BERNDT, p. 144, pl. 9, figs. 10-14.</p>
<p>2006 <italic>Pterodonta deffisi</italic> THOMAS &#x0026; P&#x00C9;RON &#x2013; EL QOT, p. 105, pl. 21, figs. 9-10.</p>
<p>2011 <italic>Pterodonta deffisi</italic> THOMAS &#x0026; P&#x00C9;RON &#x2013; AYOUB-HANNAA, p. 136.</p>
<p><bold>Description:</bold> Grand moule fusiforme et mod&#x00E9;r&#x00E9;ment spiral&#x00E9;. Spire constitu&#x00E9;e de deux tours de recouvrement. Ces spires sont l&#x00E9;g&#x00E8;rement convexes, s&#x00E9;par&#x00E9;es par des sutures peu profondes. Base &#x00E9;troite et presque aigue. Ouverture relativement &#x00E9;troite se prolongeant en une forme ovale. Ornementation absente.</p>
<p><bold>Discussion:</bold> <italic>Pterondata subinflata</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) et <italic>Pterondata inflata</italic> (D&#x2019;OBRIGNY, <xref ref-type="bibr" rid="cit0087">1842</xref>) diff&#x00E9;rent de <italic>Pterondata deffisi</italic> par une forme plus gonfl&#x00E9;e, des l&#x00E8;vres internes et externes fortement convexes avec une base presque arrondie.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: &#x00C9;gypte (El Qot, <xref ref-type="bibr" rid="cit0098">2006</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>), Syrie (Blanckenhorn, <xref ref-type="bibr" rid="cit0043">1934</xref>) et Jordanie (Berndt, <xref ref-type="bibr" rid="cit0039">2002</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen trouv&#x00E9; dans l&#x2019;unit&#x00E9; B.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0020">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n=1</td>
<td align="center">H</td>
<td align="center">D</td>
<td align="center">HL</td>
<td align="center">HA</td>
<td align="center">WA</td>
<td align="center">PA&#x00B0;</td>
<td align="center">Nw</td>
<td align="center">D/H</td>
<td align="center">HL/H</td>
<td align="center">WA/HA</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">62</td>
<td align="center">35</td>
<td align="center">51</td>
<td align="center">42</td>
<td align="center">18</td>
<td align="center">50&#x00B0;</td>
<td align="center">4</td>
<td align="center">0.56</td>
<td align="center">0.82</td>
<td align="center">0.43</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Esp&#x00E8;ce: <bold><italic>Pterodonta elongata</italic></bold> (D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0088">1843</xref>)</p>
<p><xref ref-type="fig" rid="f0006">Fig. 6.10</xref>.</p>
<p>1843 <italic>Pterodonta elongata</italic> n. sp<italic>.</italic> D&#x2019;ORBIGNY, p. 316, pl. 218, fig. 2.</p>
<p>1843 <italic>Pterodonta intermedia</italic> D&#x2019;ORBIGNY, p. 319, pl. 220, fig. 1.</p>
<p>?1843 <italic>Pterodonta ovata</italic> D&#x2019;ORBIGNY, p. 317, pl. 218, fig. 3.</p>
<p>?1974 <italic>Pterodonta ovata</italic> D&#x2019;ORBIGNY &#x2013; ALBANESI &#x0026; BUSSON, pl. 24, fig. 1.</p>
<p>1985 <italic>Pterodonta elongata</italic> D&#x2019;ORBIGNY &#x2013; KOLLMANN, p. 97, fig. 5f-g.</p>
<p>2015 <italic>Pterodonta elongata</italic> D&#x2019;ORBIGNY &#x2013; AYOUB-HANNAA <italic>et al</italic>., p. 48, fig. 10 (G-I).</p>
<p><bold>Description:</bold> Coquille allong&#x00E9;e, compos&#x00E9;e de trois tours assez convexes peu aplatis. Le dernier tour repr&#x00E9;sente presque les deux tiers de la taille de la coquille. Ouverture assez longue et &#x00E9;troite. Ornementation absente.</p>
<p><bold>Discussion:</bold> <italic>Pterodonta elongata</italic> ressemble beaucoup &#x00E0; <italic>Pterodonta ovata</italic>, mais cette derni&#x00E8;re s&#x2019;en diff&#x00E9;rencie clairement par une forme plus raccourcie et une dent prolong&#x00E9;e sur le labre.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Alg&#x00E9;rie (Albanesi &#x0026; Busson, <xref ref-type="bibr" rid="cit0013">1974</xref>) et Serbie centrale (Ayoub-Hannaa <italic>et al</italic>., <xref ref-type="bibr" rid="cit0026">2015</xref>). C&#x00E9;nomanien-Santonien sup&#x00E9;rieur: France (D&#x2019;Orbigny, <xref ref-type="bibr" rid="cit0088">1843</xref>; Kollmann, 2005),</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen trouv&#x00E9; dans l&#x2019;unit&#x00E9; A.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0021">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 1</td>
<td align="center">H</td>
<td align="center">D</td>
<td align="center">HL</td>
<td align="center">HA</td>
<td align="center">WA</td>
<td align="center">PA&#x00B0;</td>
<td align="center">Nw</td>
<td align="center">D/H</td>
<td align="center">HL/H</td>
<td align="center">WA/HA</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">29</td>
<td align="center">17</td>
<td align="center">21</td>
<td align="center">13</td>
<td align="center">10</td>
<td align="center">50&#x00B0;</td>
<td align="center">4</td>
<td align="center">0.59</td>
<td align="center">0.72</td>
<td align="center">0.77</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Famille: Tylostomatidae STOLICZKA, 1868</p>
<p>Esp&#x00E8;ce: <bold><italic>Tylostoma (Tylostoma) globosum</italic></bold> (SHARPE, 1849) <xref ref-type="fig" rid="f0006">Fig. 6.11</xref>.</p>
<p>1849 <italic>Tylostoma globosum</italic> sp. nov. SHARPE, p. 379, pl. 9, figs. 5-6.</p>
<p>1912 <italic>Tylostoma globosum</italic> SHARPE &#x2013; PERVINQUI&#x00C8;RE, p. 53, pl. 4, figs. 9-10.</p>
<p>1916 <italic>Tylostoma globosum</italic> SHARPE &#x2013; GRECO, p. 143 (85), pl. 17 (9), figs. 11-12.</p>
<p>1974 <italic>Tylostoma</italic> (<italic>Tylostoma</italic>) <italic>globosum</italic> SHARPE &#x2013; ALBANESI &#x0026; BUSSON, p. 309, pl. 25, fig. 1.</p>
<p>1981 <italic>Tylostoma globosum</italic> SHARPE &#x2013; AMARD <italic>et al</italic>., p. 70, pl. 5, fig. 3.</p>
<p>1985 <italic>Tylostoma</italic> aff. <italic>globosa</italic> SHARPE &#x2013; KOLLMANN, p. 102, fig. 5k.</p>
<p>2001 <italic>Tylostoma globosum</italic> SHARPE &#x2013; KORA <italic>et al</italic>., pl. 3, fig. 4.</p>
<p>2002 <italic>Tylostoma globosum</italic> SHARPE &#x2013; BERNDT, p. 143, pl. 9, fig. 5.</p>
<p>2011 <italic>Tylostoma</italic> (<italic>Tylostoma</italic>) <italic>globosum</italic> SHARPE &#x2013; AYOUB-HANNAA, p. 137, fig. 14.</p>
<p><bold>Description:</bold> Grand gast&#x00E9;ropode, globuleux &#x00E0; spire basse. Spire comportant 3 tours arrondis et presque lisses. Les spires sont larges, comprim&#x00E9;es et s&#x00E9;par&#x00E9;es par des sutures l&#x00E9;g&#x00E8;rement d&#x00E9;prim&#x00E9;es. Base largement arrondie &#x00E0; ouverture &#x00E9;troite semi-lunaire et l&#x00E8;vre externe largement plus convexe que l&#x2019;interne. Ornementation absente.</p>
<p><bold>Discussion:</bold> <italic>Tylostoma cossoni</italic> (THOMAS &#x0026; PERON, 1889) diff&#x00E8;re de notre mat&#x00E9;riel par une spire relativement plus haute.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Jordanie (Berndt, <xref ref-type="bibr" rid="cit0039">2002</xref>). limite C&#x00E9;nomanien-Turonien: Alg&#x00E9;rie (Albanesi &#x0026; Busson, <xref ref-type="bibr" rid="cit0013">1974</xref>; Amard, <italic>et al</italic>., <xref ref-type="bibr" rid="cit0017">1981</xref>; Busson <italic>et al</italic>., <xref ref-type="bibr" rid="cit0051">1999</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0038">2017</xref>). Turonien: Portugal (Sharpe, 1849), Tunisie (Pervinqui&#x00E8;re, <xref ref-type="bibr" rid="cit0181">1912</xref>) et &#x00C9;gypte (Kora <italic>et al</italic>., <xref ref-type="bibr" rid="cit0141">2001</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>). Santonien: France (Kollmann, <xref ref-type="bibr" rid="cit0139">1985</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen trouv&#x00E9; dans l&#x2019;unit&#x00E9; A.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0022">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n = 1</td>
<td align="center">H</td>
<td align="center">D</td>
<td align="center">HL</td>
<td align="center">HA</td>
<td align="center">WA</td>
<td align="center">PA&#x00B0;</td>
<td align="center">Nw</td>
<td align="center">D/H</td>
<td align="center">HL/H</td>
<td align="center">WA/HA</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">24</td>
<td align="center">20</td>
<td align="center">19</td>
<td align="center">17</td>
<td align="center">10</td>
<td align="center">100&#x00B0;</td>
<td align="center">4</td>
<td align="center">0.83</td>
<td align="center">0.79</td>
<td align="center">0.59</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Esp&#x00E8;ce: <bold><italic>Tylostoma pallaryi</italic></bold> (P&#x00C9;RON &#x0026; FOURTAU, <xref ref-type="bibr" rid="cit0109">1904</xref>) <xref ref-type="fig" rid="f0006">Fig. 6.12</xref>.</p>
<p>1904 <italic>Pseudomelania pallaryi</italic> sp. nov. P&#x00C9;RON &#x0026; FOURTAU in FOURTAU, p. 270, pl. 1, fig. 22.</p>
<p>1916 <italic>Tylostoma pallaryi</italic> P&#x00C9;RON &#x0026; FOURTAU &#x2013; GRECO, p. 151 (93), pl. 18 (10), figs. 2-4.</p>
<p>1963 <italic>Tylostoma pallaryi</italic> P&#x00C9;RON &#x0026; FOURTAU &#x2013; FAWZI, p. 91, pl. 7, figs. 1-3.</p>
<p>2004 <italic>Tylostoma pallaryi</italic> P&#x00C9;RON &#x0026; FOURTAU &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 5, fig. 13.</p>
<p>2011 <italic>Tylostoma pallaryi</italic> P&#x00C9;RON &#x0026; FOURTAU &#x2013; AYOUB-HANNAA, p. 138.</p>
<p><bold>Description:</bold> Sp&#x00E9;cimen de taille mod&#x00E9;r&#x00E9;ment large, haut et spiral&#x00E9;. La spire est form&#x00E9;e de trois tours assez convexes et s&#x00E9;par&#x00E9;s par des sutures relativement d&#x00E9;prim&#x00E9;es. Dernier tour large, &#x00E0; flancs convexes, de orme semi-conique occupant plus de la moiti&#x00E9; de la hauteur totale. Ouverture relativement &#x00E9;troite. Ornementation totalement absente.</p>
<p><bold>Discussion:</bold> <italic>Tylostoma syriacum</italic> (CONRAD, <xref ref-type="bibr" rid="cit0064">1852</xref>) du C&#x00E9;nomanien syrien ressemble &#x00E0; notre mat&#x00E9;riel mais en diff&#x00E8;re par sa forme g&#x00E9;n&#x00E9;rale et ses sutures plus profondes.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Alg&#x00E9;rie (P&#x00E9;ron &#x0026; Fourtau, <xref ref-type="bibr" rid="cit0109">1904</xref>; Busson <italic>et al</italic>., <xref ref-type="bibr" rid="cit0051">1999</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0038">2017</xref>), l&#x2019;Egypte (Greco, <xref ref-type="bibr" rid="cit0124">1916</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>). Maestrichtien: Arabie Saoudite (Gameil &#x0026; El-Sorogy, 2015).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen trouv&#x00E9; dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0023">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n=1</td>
<td align="center">H</td>
<td align="center">D</td>
<td align="center">HL</td>
<td align="center">HA</td>
<td align="center">WA</td>
<td align="center">PA&#x00B0;</td>
<td align="center">Nw</td>
<td align="center">D/H</td>
<td align="center">HL/H</td>
<td align="center">WA/HA</td>
</tr>
<tr>
<td align="left">Sp&#x00E9;cimen</td>
<td align="center">22</td>
<td align="center">14</td>
<td align="center">15</td>
<td align="center">12</td>
<td align="center">9</td>
<td align="center">60&#x00B0;</td>
<td align="center">3</td>
<td align="center">0.64</td>
<td align="center">0.68</td>
<td align="center">0.75</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Famille: Nerineidae ZITTEL, <xref ref-type="bibr" rid="cit0236">1873</xref></p>
<p>Genre: <italic>Nerinea</italic>
DEFRANCE, <xref ref-type="bibr" rid="cit0079">1825</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Nerinea texana</italic></bold> (ROEMER, <xref ref-type="bibr" rid="cit0192">1849</xref>)</p>
<p><xref ref-type="fig" rid="f0006">Fig. 6.13</xref>.</p>
<p>1849 <italic>Nerinea</italic> sp. ROEMER, p. 412.</p>
<p>1852 <italic>Nerinea texana</italic> ROEMER, p. 41, pl. 4, fig. 7.</p>
<p>1928 <italic>Nerinea texana</italic> ROEMER &#x2013; ADKINS, p. 187.</p>
<p><bold>Description:</bold> Coquille allong&#x00E9;e, form&#x00E9;e d&#x2019;alternance de tours &#x00E9;troits avec d&#x2019;autres plus larges. Le dernier tour est un peu &#x00E9;vid&#x00E9; en dessus.</p>
<p><bold>Discussion:</bold> <italic>Nerinea texana</italic> (Roemer, <xref ref-type="bibr" rid="cit0192">1849</xref>) ressemble beaucoup &#x00E0; <italic>Nerinea visurgis</italic>, mais s&#x2019;en distingue par une coquille plus &#x00E9;troite et moins car&#x00E8;n&#x00E9;e.</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9; B.</p>
<p>Esp&#x00E8;ce: <bold><italic>Nerinea</italic> sp</bold>.</p>
<p><xref ref-type="fig" rid="f0006">Fig. 6.14</xref>.</p>
<p><bold>Description:</bold> Coquille de tr&#x00E8;s petite taille, incompl&#x00E8;te, fusiforme, se composant de deux spires l&#x00E9;g&#x00E8;rement convexes. Ornementation constitu&#x00E9;e de cordes spiral&#x00E9;es et de nervures axiales.</p>
<p><bold>Mat&#x00E9;riel:</bold> 2 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; A.</p>
<p>Ordre: Cephalaspidea FISCHER, 1883</p>
<p>Famille: Ringiculidae PHILIPPI, <xref ref-type="bibr" rid="cit0185">1853</xref></p>
<p>Genre: <italic>Avellana</italic>
D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0088">1843</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Avellana cassis</italic></bold> (D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0087">1842</xref>)</p>
<p><xref ref-type="fig" rid="f0007">Fig. 7.1</xref>.</p>
<fig id="f0007">
<label>Fig. 7</label>
<caption><p>1. <italic>Avellana cassis</italic> (D&#x2019;ORBIGNY, 1842) de l&#x2019;unit&#x00E9; A: 1a- vue aperturale, 1b- vue dorsale. 2. <italic>Sharpeiceras laticlavium</italic> (SHARPE, 1855) de l&#x2019;unit&#x00E9; A: 2a- vue de cot&#x00E9;, 2b- vue dorsale, 2c- vue ventrale. 3. <italic>Neolobites vibrayeanus</italic> (D&#x2019;ORBIGNY, 1841) de l&#x2019;unit&#x00E9; C. 4. <italic>Acanthoceras rhotomagense</italic> (BRONGNIART, <xref ref-type="bibr" rid="cit0046">1822</xref>) de l&#x2019;unit&#x00E9; B: 4a- vue ventrale, 4b- vue de cot&#x00E9;. 5. <italic>Heterodiadema libycum</italic> (AGASSIZ &#x0026; DESOR, <xref ref-type="bibr" rid="cit0011">1846</xref>) de l&#x2019;unit&#x00E9; A: 5a- vue apicale, 5b- vue adorale. 6. <italic>Coenholectypus excisus</italic> (DESOR, 1847) de l&#x2019;unit&#x00E9; C. 7. <italic>Hemiaster (Hemiaster) syriacus</italic> (CONRAD, <xref ref-type="bibr" rid="cit0064">1852</xref>) de l&#x2019;unit&#x00E9; A: 7a- vue apicale, 7b- vue adorale, 7c- vue du p&#x00E9;riprocte. 8. <italic>Hemiaster gabrielis</italic> (P&#x00C9;RON &#x0026; GAUTHIER, 1878) de l&#x2019;unit&#x00E9; A: 8a- vue apicale, 8b- vue adorale, 8c- vue du p&#x00E9;riprocte. 9. <italic>Hemiaster (Mecaster) heberti</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) de l&#x2019;unit&#x00E9; D: 9a- vue apicale, 9b- vue adorale, 9c- vue du cot&#x00E9;. 10. <italic>Hemiaster (Mecaster) pseudofourneli</italic> (P&#x00C9;RON &#x0026; GAUTHIER, 1878) de l&#x2019;unit&#x00E9; A: 10a- vue apicale, 10b- vue adorale, 10c- vue du p&#x00E9;riprocte. 11. <italic>Hemiaster (Mecaster) batnensis</italic> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>) de l&#x2019;unit&#x00E9; A: 11a- vue apicale, 11b- vue adorale. (chaque barre correspond &#x00E0; 1 cm).</p></caption>
<graphic xlink:href="EG201810-82-g007.tif" xmlns:xlink="http://www.w3.org/1999/xlink"/>
</fig>
<p>1842 <italic>Cassis avellana</italic> D&#x2019;ORBIGNY, pl. 169, figs. 10-15.</p>
<p><bold>Description:</bold> Petite coquille form&#x00E9;e de deux tours peu convexes dont le dernier occupe la majorit&#x00E9; du volume. Base presque aigu&#x00EB;, &#x00E0; ouverture longue et &#x00E9;troite. Ornementation absente.</p>
<p><bold>Discussion:</bold> Cette esp&#x00E8;ce se confond ais&#x00E9;ment avec <italic>Avellana incrassata</italic>, mais la forme plus renfl&#x00E9;e marque bien la derni&#x00E8;re esp&#x00E8;ce.</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9; A.</p>
</sec>
<sec id="sec6.4">
<title>C&#x00E9;phalopodes</title>
<p>La taxonomie utilis&#x00E9;e pour la classification des ammonites collect&#x00E9;es suit celle de Wright <italic>et al</italic>. (<xref ref-type="bibr" rid="cit0230">1996</xref>).</p>
<p>Ordre: Ammonoidea ZITTEL, <xref ref-type="bibr" rid="cit0237">1884</xref></p>
<p>Famille: Acanthoceratidae GROSSOUVRE, <xref ref-type="bibr" rid="cit0126">1894</xref></p>
<p>Genre: <italic>Sharpeiceras</italic> HYATT, 1903</p>
<p>Esp&#x00E8;ce: <bold><italic>Sharpeiceras laticlavium</italic></bold> (SHARPE, <xref ref-type="bibr" rid="cit0206">1855</xref>)</p>
<p><xref ref-type="fig" rid="f0007">Fig. 7.2</xref>.</p>
<p>1855 <italic>Ammonites laticlavius</italic> SHARPE, p. 31, pl. 14, fig. 1.</p>
<p>1987 <italic>Sharpeiceras laticlavium</italic> SHARPE &#x2013; WRIGHT &#x0026; KENNEDY, p. 127, pl. 41, fig. 4, text-figs. 29, 30, 34a.</p>
<p>1991 <italic>Sharpeiceras laticlavium</italic> SHARPE &#x2013; DELAMETTE &#x0026; KENNEDY, p. 454, figs. 9.9, 9.10.</p>
<p>2010 <italic>Sharpeiceras laticlavium</italic> SHARPE &#x2013; AMEDRO &#x0026; ROBASZYNSKI, p. 13, pl. 1, fig. 1.</p>
<p>2012 <italic>Sharpeiceras laticlavium</italic> SHARPE &#x2013; AMEDRO <italic>et al</italic>., p. 11, pl. 3, fig. 2.</p>
<p>2015 <italic>Sharpeiceras laticlavium</italic> SHARPE &#x2013; KENNEDY <italic>et al.</italic>, p. 11, fig. 12R.</p>
<p>2015 <italic>Sharpeiceras laticlavium</italic> SHARPE &#x2013; KENNEDY &#x0026; GALE, p. 274, pl. 10, fig. 3.</p>
<p><bold>Description:</bold> Sp&#x00E9;cimen incomplet montrant n&#x00E9;anmoins une section presque rectangulaire &#x00E0; costulation dense et &#x00E0; croissance rapide.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Angleterre nord-occidentale et Sud-Est de la France (Am&#x00E9;dro <italic>et al</italic>., <xref ref-type="bibr" rid="cit0018">2012</xref>), Roumanie, Tunisie, Iran, Madagascar et Afrique du sud (Kennedy <italic>et al</italic>., <xref ref-type="bibr" rid="cit0136">2011</xref>, <xref ref-type="bibr" rid="cit0135">2015</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9; A<italic>.</italic>
</p>
<p>Genre: <italic>Neolobites</italic> FISCHER, 1882</p>
<p>Esp&#x00E8;ce: <bold><italic>Neolobites vibrayeanus</italic></bold> (D&#x2019;ORBIGNY, <xref ref-type="bibr" rid="cit0087">1841</xref>)</p>
<p><xref ref-type="fig" rid="f0007">Fig. 7.3</xref>.</p>
<p>1841 <italic>Ammonites vibrayeanus</italic> sp. nov. D&#x2019;ORBIGNY, p. 322, pl. 96, figs. 1, 3.</p>
<p>1914 <italic>Neolobites vibrayeanus</italic> D&#x2019;ORBIGNY &#x2013; ECK, p. 185.</p>
<p>1914 <italic>Neolobites schweinfurthi</italic> ECK &#x2013; ECK, p. 186, pl. 11, fig. 1.</p>
<p>1914 <italic>Neolobites brancai</italic> ECK &#x2013; ECK, p. 188, pl. 12, fig. 1.</p>
<p>1981 <italic>Neolobites vibrayeanus</italic> D&#x2019;ORBIGNY &#x2013; KENNEDY &#x0026; JUIGNET, p. 23, figs. 3-4, 6a; text-fig. 5.</p>
<p>1992 <italic>Neolobites vibrayeanus</italic> D&#x2019;ORBIGNY &#x2013; MEISTER <italic>et al</italic>., p. 59, pl. 1, figs. 1-4, 6; text-fig. 8.</p>
<p>2002 <italic>Neolobites vibrayeanus</italic> D&#x2019;ORBIGNY &#x2013; BERNDT, pl. 13, figs. 2-5.</p>
<p>2005 <italic>Neolobites vibrayeanus vibrayeanus</italic> D&#x2019;ORBIGNY &#x2013; MEISTER &#x0026; ABDALLAH, p. 123, pl. 1, figs. 3-6, 8; pl. 2, figs. 2-3, 6.</p>
<p>2005 <italic>Neolobites vibrayeanus</italic> D&#x2019;ORBIGNY &#x2013; WIESE &#x0026; SCHULZE, p. 933, figs. 4A-E; 5A-D; 6AJ; 7A-E; 8A, B, H, 9A, B, D.</p>
<p>2011 <italic>Neolobites vibrayeanus</italic> (D&#x2019;ORBIGNY) &#x2013; AYOUB-HANNAA, p. 66, text-fig. 9.</p>
<p><bold>Description:</bold> Forme mal conserv&#x00E9;e qui pr&#x00E9;sente n&#x00E9;anmoins les sutures typiques de l&#x2019;esp&#x00E8;ce, ces derni&#x00E8;res se chevauchent et constituent des lobes &#x00E9;troits (trois lobes distincts sur notre sp&#x00E9;cimen), lanc&#x00E9;ol&#x00E9;s et largement espac&#x00E9;s.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien terminal: France (D&#x2019;Orbigny, <xref ref-type="bibr" rid="cit0087">1841</xref>; Kennedy &#x0026; Juignet, <xref ref-type="bibr" rid="cit0137">1981</xref>), Maroc (Meister &#x0026; Rhalmi, <xref ref-type="bibr" rid="cit0160">2002</xref>; Meister <italic>et al</italic>., 2017), Alg&#x00E9;rie (P&#x00E9;ron, 1897; Am&#x00E9;dro <italic>et al</italic>., 1996; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>, 2017), Tunisie (Meister &#x0026; Abdallah, <xref ref-type="bibr" rid="cit0161">2005</xref>), &#x00C9;gypte (Weise &#x0026; Schulze, <xref ref-type="bibr" rid="cit0226">2005</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>), Niger (Meister <italic>et al</italic>., 1992) et Jordanie (Berndt, <xref ref-type="bibr" rid="cit0039">2002</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen trouv&#x00E9; dans l&#x2019;unit&#x00E9; C.</p>
<p>Genre: <italic>Acanthoceras</italic>
NEUMAYR, <xref ref-type="bibr" rid="cit0171">1875</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Acanthoceras rhotomagense</italic></bold> (BROGNIART, <xref ref-type="bibr" rid="cit0046">1822</xref>) <xref ref-type="fig" rid="f0007">Fig.7.4</xref>.</p>
<p>1822 <italic>Ammonites rhotomagensis</italic> BRONGNIART, p 83, pl. 6, fig. 2.</p>
<p>1826 <italic>Ammonites hippocastanum</italic> SOWERBY, p. 23, pl. 514, fig. 2.</p>
<p>1853 <italic>Ammonites rhotomagensis</italic> BRONGNIART &#x2013; SHARPE, p. 33, pl. 16, figs. 1-4.</p>
<p>1987 <italic>Acanthoceras rhotomagense</italic> BRONGNIART &#x2013; WRIGHT &#x0026; KENNEDY, p. 156, text-figs. 47-54, 63-69; pl. 42, fig. 8; pl. 44, figs 1-11; pl. 45, figs. 1-5; pl. 46, figs. 1-4.</p>
<p>2011 <italic>Acanthoceras rhotomagense</italic> BRONGNIART &#x2013; KENNEDY <italic>et al</italic>., p. 225, figs. 14A, B, 15A-C.</p>
<p><bold>Description:</bold> De forme robuste &#x00E0; tours &#x00E9;pais, orn&#x00E9;e de nombreuses c&#x00F4;tes, longues et courtes en alternance.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien moyen: France et Belgique (Kennedy <italic>et al</italic>., <xref ref-type="bibr" rid="cit0136">2011</xref>)</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9; B.</p>
</sec>
<sec id="sec6.5">
<title>&#x00C9;chinides</title>
<p>La classification suivie est celle de Kroh &#x0026; Smith (<xref ref-type="bibr" rid="cit0142">2010</xref>). H et L repr&#x00E9;sentent respectivement la hauteur et la longueur du sp&#x00E9;cimen en (mm).</p>
<p>Ordre: Phymosomatoida MORTENSEN, <xref ref-type="bibr" rid="cit0165">1904</xref></p>
<p>Famille: Heterodiadematidae SMITH &#x0026; WRIGHT, 1993</p>
<p>Genre: <italic>Heterodiadema</italic> COTTEAU, 1846</p>
<p>Esp&#x00E8;ce: <bold><italic>Heterodiadema libycum</italic></bold> (AGASSIZ &#x0026; DESOR, <xref ref-type="bibr" rid="cit0011">1846</xref>) <xref ref-type="fig" rid="f0007">Fig. 7.5</xref>.</p>
<p>1846 <italic>Hemicidaris libyca</italic> sp. nov. AGASSIZ &#x0026; DESOR, p. 338.</p>
<p>1859 <italic>Pseudodiadema martinianum,</italic> COTTEAU, p. 17, pl. m, fig. 5.</p>
<p>1921 <italic>Heterodiadema libycum</italic> AGASSIZ &#x0026; DESOR &#x2013; FOURTAU, p. 16.</p>
<p>1925 <italic>Heterodiadema libycum</italic> AGASSIZ &#x0026; DESOR &#x2013; BLANCKENHORN, p. 85, pl. 7, fig. 1a-c.</p>
<p>1985 <italic>Heterodiadema lybicum</italic> AGASSIZ &#x0026; DESOR &#x2013; BANDEL &#x0026; GEYS, p. 106, pl. 4, figs. 6-7; pl. 5, figs. 1-2.</p>
<p>1989 <italic>Heterodiadema lybicum</italic> AGASSIZ &#x0026; DESOR &#x2013; GEYS, p. 129, pl. 1, figs. 5-6.</p>
<p>1995 <italic>Heterodiadema lybicum</italic> AGASSIZ &#x0026; DESOR &#x2013; N&#x00C9;RAUDEAU, p. 406, fig. 3e.</p>
<p>2002 <italic>Heterodiadema lybicum</italic> AGASSIZ &#x0026; DESOR &#x2013; AHMAD &#x0026; ABDELHAMID, p. 462, figs. 5/11-12.</p>
<p>2003 <italic>Heterodiadema libycum</italic> AGASSIZ &#x0026; DESOR &#x2013; BERNDT, p. 78, figs. 3/1-2.</p>
<p>?2006 <italic>Heterodiadema buhaysensis</italic> SMITH &#x2013; EL QOT, p. 130, pl. 30, fig. 5a-c.</p>
<p>2007 <italic>Heterodiadema libycum</italic> AGASSIZ &#x0026; DESOR &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 6, fig. 6.</p>
<p>2011 <italic>Heterodiadema libycum</italic> AGASSIZ &#x0026; DESOR &#x2013; AYOUB-HANNAA, p. 248, pl. 31, figs. 2-4.</p>
<p>2012 <italic>Heterodiadema libycum</italic> AGASSIZ &#x0026; DESOR &#x2013; BENYOUCEF <italic>et al</italic>., pl. 2, fig. 4a-b.</p>
<p><bold>Description:</bold> Esp&#x00E8;ce de taille moyenne, de forme sub-circulaire &#x00E0; l&#x00E9;g&#x00E8;rement pentagonale. Plus ou moins renfl&#x00E9;e en dessus, et presque plate en dessous. Zones porif&#x00E8;res droites un peu d&#x00E9;prim&#x00E9;es. Elles sont compos&#x00E9;es, sur leur totalit&#x00E9;, de pores simples, arrondis, superpos&#x00E9;s, ne se multipliant pas pr&#x00E8;s du p&#x00E9;ristome.</p>
<p><bold>Discussion:</bold> Dans le synopsis des &#x00E9;chinides fossiles, cette esp&#x00E8;ce est rapport&#x00E9;e raisonnablement &#x00E0; <italic>Pseudodiadema</italic> avec lesquels elle montre plus d&#x2019;affinit&#x00E9; qu&#x2019;avec <italic>Hemicidaris</italic>.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: France (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>), Nigeria (N&#x00E9;raudeau &#x0026; Courville, <xref ref-type="bibr" rid="cit0169">1997</xref>), &#x00C9;gypte (Geys, <xref ref-type="bibr" rid="cit0116">1989</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>; Ayoub-Hannaa &#x0026; F&#x00FC;rsich, <xref ref-type="bibr" rid="cit0024">2011</xref>), Jordanie centrale (Bandel &#x0026; Geys, <xref ref-type="bibr" rid="cit0027">1985</xref>; Ahmed &#x0026; Abdelhamid, <xref ref-type="bibr" rid="cit0003">2002</xref>; Brendt, <xref ref-type="bibr" rid="cit0040">2003</xref>), Arabie Saoudite (N&#x00E9;raudeau, <xref ref-type="bibr" rid="cit0168">1995</xref>), Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>; Busson <italic>et al</italic>., <xref ref-type="bibr" rid="cit0051">1999</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>, <xref ref-type="bibr" rid="cit0038">2017</xref>), Oman et &#x00C9;mirats Arabes Unis (Smith, <xref ref-type="bibr" rid="cit0209">1995</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 25 sp&#x00E9;cimens dont 7 r&#x00E9;colt&#x00E9;s dans l&#x2019;unit&#x00E9; A, 15 dans l&#x2019;unit&#x00E9; C et 3 dans l&#x2019;unit&#x00E9; D.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0024">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n=25</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">L/H</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">6.75-21.87</td>
<td align="center">16.82-38.76</td>
<td align="center">1.35-2.42</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">12.95-14.49</td>
<td align="center">25.30-27.46</td>
<td align="center">1.80-1.94</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Ordre: Holectypoida DUNCAN, <xref ref-type="bibr" rid="cit0096">1889</xref></p>
<p>Famille: Holectypidae LAMBERT, <xref ref-type="bibr" rid="cit0148">1900</xref></p>
<p>Genre: <italic>Coenholectypus</italic>
POMEL, <xref ref-type="bibr" rid="cit0187">1883</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Coenholectypus excisus</italic></bold> (DESOR, <xref ref-type="bibr" rid="cit0011">1847</xref>)</p>
<p><xref ref-type="fig" rid="f0007">Fig. 7.6</xref>.</p>
<p>1847 <italic>Discoidea excisa</italic> DESOR &#x2013; AGASSIZ &#x0026; DESOR, p. 90.</p>
<p>1861 <italic>Holectypus excisus</italic> DESOR &#x2013; COTTEAU &#x0026; TRIGER, p. 368, pl. 62, figs. 1-4.</p>
<p>1873 <italic>Holectypus excisus</italic> DESOR &#x2013; LARLET, p. 81.</p>
<p>1921 <italic>Holectypus excisus</italic> DESOR &#x2013; FOURTAU, p. 55.</p>
<p>1989 <italic>Caenholectypus excisus</italic> DESOR &#x2013; ZAGHBIB-TURKI, p. 72.</p>
<p>1989 <italic>Caenholectypus excisus</italic> DESOR &#x2013; NERAUDEAU &#x0026; MOREAU, p. 312.</p>
<p>2001 <italic>Caenholectypus excisus</italic> DESOR &#x2013; ABDELHAMID &#x0026; EL QOT, p. 21, fig. 5O-P.</p>
<p>2003 <italic>Caenholectypus excisus</italic> DESOR &#x2013; ABDELHAMID &#x0026; AZAB, p. 864, pl. 4, figs. A-B.</p>
<p>2006 <italic>Coenholectypus excisus</italic> DESOR &#x2013; EL QOT, p. 142, pl. 32, fig. 10a-c.</p>
<p>2012 <italic>Coenholectypus excisus</italic> DESOR &#x2013; BENYOUCEF <italic>et al</italic>., pl. 2, fig. 2a-b.</p>
<p><bold>Description:</bold> Esp&#x00E8;ce de taille moyenne, sub-circulaire, aussi large que longue. La face sup&#x00E9;rieure est convexe sub-d&#x00E9;prim&#x00E9;e. La face inf&#x00E9;rieure, renfl&#x00E9;e et arrondie sur les bords, est profond&#x00E9;ment concave en son milieu. P&#x00E9;ristome sub-circulaire, peu elliptique. P&#x00E9;riprocte assez grand et pointu aux deux extr&#x00E9;mit&#x00E9;s. Zones porif&#x00E8;res compos&#x00E9;es de pores obliques, serr&#x00E9;s et tr&#x00E8;s petits vers le sommet, plus espac&#x00E9;s &#x00E0; la face inf&#x00E9;rieure.</p>
<p><bold>Discussion:</bold> <italic>Cohenholectypus excisus</italic> se distingue nettement de ses cong&#x00E9;n&#x00E8;res par la forme g&#x00E9;n&#x00E9;rale, la nature et la disposition de ses tubercules, la structure de son p&#x00E9;ristome, mais surtout par la grandeur de son p&#x00E9;riprocte qui remonte &#x00E0; la face sup&#x00E9;rieure jusqu&#x2019;au tiers de l&#x2019;interambulacre impair.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Alg&#x00E9;rie (Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>), Tunisie (Zaghbib-Turki, <xref ref-type="bibr" rid="cit0232">1989</xref>), &#x00C9;gypte (Abdelhamid &#x0026; El Qot, <xref ref-type="bibr" rid="cit0007">2001</xref>; Abdelhamid &#x0026; Azab, <xref ref-type="bibr" rid="cit0008">2003</xref>; El Qot, <xref ref-type="bibr" rid="cit0098">2006</xref>) et Palestine (Larlet, <xref ref-type="bibr" rid="cit0150">1873</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 1 sp&#x00E9;cimen r&#x00E9;colt&#x00E9; dans l&#x2019;unit&#x00E9; C.</p>
<p>Ordre: Spatangoida CLAUS, <xref ref-type="bibr" rid="cit0062">1876</xref></p>
<p>Famille: Hemiasteridae CLARK, <xref ref-type="bibr" rid="cit0061">1917</xref></p>
<p>Genre: <italic>Hemiaster</italic> AGASSIZ, in AGASSIZ &#x0026; DESOR, <xref ref-type="bibr" rid="cit0011">1847</xref></p>
<p>Esp&#x00E8;ce: <bold><italic>Hemiaster (Hemiaster) syriacus</italic></bold> (CONRAD, <xref ref-type="bibr" rid="cit0064">1852</xref>) <xref ref-type="fig" rid="f0007">Fig. 7.7</xref>.</p>
<p>1852 <italic>Holaster syriacus</italic> sp. nov. CONRAD in LYNCH, p. 212, pl. 1, fig. 2.</p>
<p>1925 <italic>Hemiaster syriacus</italic> CONRAD &#x2013; BLANCKENHORN, p. 103, pl. 8, figs. 33-35.</p>
<p>1990 <italic>Hemiaster syriacus</italic> (CONRAD) &#x2013; SMITH &#x0026; WRIGHT, p. 61, figs. 19a-b, 20.</p>
<p>?1995 <italic>Mecaster orbignyanus</italic> (DESOR) &#x2013; N&#x00C9;RAUDEAU, p. 419, fig. 6c.</p>
<p>2001 <italic>Hemiaster syriacus</italic> (CONRAD) &#x2013; ABDELHAMID &#x0026; EL QOT, p. 28, fig. 7L.</p>
<p>2003 <italic>Hemiaster syriacus</italic> (CONRAD) &#x2013; ABDELHAMID &#x0026; AZAB, p. 872, pl. 5, figs. R, P.</p>
<p>2003 <italic>Hemiaster</italic> (<italic>Mecaster</italic>) <italic>syriacus</italic> (CONRAD) &#x2013; BERNDT, p. 84, fig. 4/1a-c.</p>
<p>2006 <italic>Hemiaster</italic> (<italic>Hemiaster</italic>) <italic>syriacus</italic> (CONRAD) &#x2013; EL QOT, p. 150, pl. 34, fig. 7.</p>
<p>2010 <italic>Hemiaster</italic> (<italic>Hemiaster</italic>) <italic>syriacus</italic> (CONRAD) &#x2013; EL QOT, p. 290, pl. 5, fig. 3.</p>
<p>2011 <italic>Hemiaster</italic> (<italic>Hemiaster</italic>) <italic>syriacus</italic> (CONRAD) &#x2013; AYOUB-HANNAA, pl. 33, figs. 5-6.</p>
<p><bold>Description:</bold> Esp&#x00E8;ce de petite taille, de forme sub-circulaire. Sa hauteur maximale repr&#x00E9;sente la moiti&#x00E9; du diam&#x00E8;tre post&#x00E9;rieur. Surface apicale, l&#x00E9;g&#x00E8;rement convexe, avec un ambulacre frontal assez long. Surface adorale assez aplatie. Ambulacres en forme de rose. P&#x00E9;ristome petit et arqu&#x00E9;. P&#x00E9;riprocte petit et ovale, se trouvant dans le dernier quart de la hauteur maximale &#x00E0; partir de la base du sp&#x00E9;cimen.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: &#x00C9;gypte (Abdelhamid &#x0026; Azab, <xref ref-type="bibr" rid="cit0008">2003</xref>; El Qot, <xref ref-type="bibr" rid="cit0098">2006</xref>, <xref ref-type="bibr" rid="cit0099">2010</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>), Jordanie (Berndt, <xref ref-type="bibr" rid="cit0040">2003</xref>), la Syrie (Conrad, <xref ref-type="bibr" rid="cit0064">1852</xref>), Arabie saoudite (N&#x00E9;raudeau, <xref ref-type="bibr" rid="cit0168">1995</xref>), et Oman (Smith &#x0026; Wright, <xref ref-type="bibr" rid="cit0210">1990</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 3 sp&#x00E9;cimen trouv&#x00E9;s dans l&#x2019;unit&#x00E9; A.</p>
<p>Esp&#x00E8;ce: <bold><italic>Hemiaster gabrielis</italic></bold> (P&#x00C9;RON &#x0026; GAUTHIER, <xref ref-type="bibr" rid="cit0071">1878</xref>) <xref ref-type="fig" rid="f0007">Fig. 7.8</xref>.</p>
<p>1878 <italic>Hemiaster gabrielis</italic> P&#x00C9;RON &#x0026; GAUTHIER, p. 116, pl. 4, figs. 9-12.</p>
<p>1914 <italic>Hemiaster gabrielis</italic> P&#x00C9;RON &#x0026; GAUTHIER var. <italic>aegyptiaca</italic> var. nov. &#x2013; FOURTAU, p. 74, pl. 6, fig. 7.</p>
<p>1921 <italic>Hemiaster gabrielis</italic> P&#x00C9;RON &#x0026; GAUTHIER var. <italic>aegyptiaca</italic> var. nov. &#x2013; FOURTAU, p. 87.</p>
<p>1932 <italic>Hemiaster gabrielis</italic> P&#x00C9;RON &#x0026; GAUTHIER &#x2013; LAMBERT, p. 125.</p>
<p>2004a <italic>Hemiaster</italic> (<italic>Hemiaster</italic>) <italic>gabrielis</italic> P&#x00C9;RON &#x0026; GAUTHIER &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 10, figs. 10-11.</p>
<p>2011 <italic>Hemiaster gabrielis</italic> P&#x00C9;RON &#x0026; GAUTHIER &#x2013; AYOUB-HANNAA, p. 269, pl. 34, figs 1-2.</p>
<p><bold>Description:</bold> Esp&#x00E8;ce assez d&#x00E9;prim&#x00E9;e, aussi large que longue, la plus grande hauteur est en arri&#x00E8;re du sommet et la plus grande largeur est en avant. Dessus un peu convexe et inclin&#x00E9; vers la partie ant&#x00E9;rieure en pente douce. Dessous l&#x00E9;g&#x00E8;rement convexe. Les pores, in&#x00E9;gaux avec un granule interm&#x00E9;diaire, sont de plus en plus allong&#x00E9;s &#x00E0; mesure qu&#x2019;ils s&#x2019;&#x00E9;loignent du sommet.</p>
<p><bold>Discussion:</bold> Selon Blackenhorn (1925), Smith (<xref ref-type="bibr" rid="cit0210">1990</xref>) et autres, <italic>Hemiaster gabrielis</italic> recueilli en Alg&#x00E9;rie et <italic>Hemiaster gabrielis</italic> var. <italic>egyptiaca</italic> du C&#x00E9;nomanien du Sina&#x00EF; en &#x00C9;gypte (Fourtau, <xref ref-type="bibr" rid="cit0110">1914</xref>) sont synonymes de <italic>Hemiaster syriacus.</italic>
</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Maroc (Lambert, <xref ref-type="bibr" rid="cit0149">1932</xref>), Alg&#x00E9;rie (Slami, <xref ref-type="bibr" rid="cit0208">2014</xref>) et &#x00C9;gypte (Fourtau, <xref ref-type="bibr" rid="cit0110">1914</xref>, <xref ref-type="bibr" rid="cit0112">1921</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 45 sp&#x00E9;cimens dont 20 individus trouv&#x00E9;s dans l&#x2019;unit&#x00E9; A, et 25 sp&#x00E9;cimens dans l&#x2019;unit&#x00E9; C.</p>
<p><bold>Mesures:</bold>
</p>
<table-wrap id="ut0025">
<table frame="border" rules="all">
<tbody>
<tr>
<td align="left">n=45</td>
<td align="center">H</td>
<td align="center">L</td>
<td align="center">L/H</td>
</tr>
<tr>
<td align="left">&#x00C9;tendue</td>
<td align="center">06.75-26.15</td>
<td align="center">13.75-43.26</td>
<td align="center">1.08-2.98</td>
</tr>
<tr>
<td align="left">Moyenne</td>
<td align="center">17.12-17.94</td>
<td align="center">26.43-28.03</td>
<td align="center">1.49-1.61</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>Esp&#x00E8;ce: <bold><italic>Hemiaster (Mecaster) heberti</italic></bold> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>)</p>
<p><xref ref-type="fig" rid="f0007">Fig. 7.9</xref>.</p>
<p>1862 <italic>Epiaster heberti</italic> COQUAND<italic>,</italic> p. 242, pl. 25, figs. 7-9.</p>
<p>1921 <italic>Hemiaster heberti</italic> mutatio <italic>Turonensis</italic> FOURTAU, p. 89, pl. 11, figs. 1-10.</p>
<p>2004a <italic>Hemiaster</italic> (<italic>Mecaster</italic>) <italic>heberti</italic> COQUAND <italic>turonensis</italic> FOURTAU &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 10, fig. 14a-b.</p>
<p>2006 <italic>Hemiaster</italic> (<italic>Mecaster</italic>) <italic>heberti</italic> (COQUAND) <italic>turonensis</italic> FOURTAU &#x2013; El QOT, p. 153, pl. 34, fig. 6a-b.</p>
<p>2007 <italic>Hemiaster</italic> (<italic>Mecaster</italic>) <italic>heberti</italic> (COQUAND) <italic>turonensis</italic> FOURTAU &#x2013; ABDEL-GAWAD <italic>et al</italic>., pl. 6, fig. 11.</p>
<p>2011 <italic>Hemiaster</italic> (<italic>Mecaster</italic>) <italic>heberti</italic> COQUAND &#x2013; AYOUB-HANNAA, p. 274, pl. 34, figs. 7-8.</p>
<p><bold>Description:</bold> Esp&#x00E8;ce de petite &#x00E0; grande taille, polygonale. Sa hauteur maximale repr&#x00E9;sente moins des deux tiers du diam&#x00E8;tre post&#x00E9;rieur. Surface apicale convexe. Surface adorale l&#x00E9;g&#x00E8;rement convexe avec l&#x00E9;g&#x00E8;re d&#x00E9;pression autour du p&#x00E9;ristome. Zone porif&#x00E8;re &#x00E9;troite. Pores obliques, ov&#x00E9;s en forme de fentes &#x00E9;gales.</p>
<p><bold>Discussion:</bold> Malgr&#x00E9; la grande ressemblance, <italic>Hemiaster heberti</italic> diff&#x00E8;re de <italic>Hemiaster latigrunda</italic> (P&#x00E9;ron et Gauthier, 1880) en ayant des p&#x00E9;tales appareill&#x00E9;s un peu plus profonds et ambulacre frontal. La derni&#x00E8;re esp&#x00E8;ce ne montre pas de marge ant&#x00E9;rieure profond&#x00E9;ment excav&#x00E9;e.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>). Turonien: &#x00C9;gypte (Abdelhamid &#x0026; El Qot, <xref ref-type="bibr" rid="cit0007">2001</xref>; El Qot, <xref ref-type="bibr" rid="cit0099">2010</xref>; Abdel-Gawad <italic>et al</italic>., <xref ref-type="bibr" rid="cit0006">2007</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 4 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; D.</p>
<p>Esp&#x00E8;ce: <bold><italic>Hemiaster (Mecaster) pseudofourneli</italic></bold> (P&#x00C9;RON &#x0026; GAUTHIER, <xref ref-type="bibr" rid="cit0071">1878</xref>) <xref ref-type="fig" rid="f0007">Fig. 7.10</xref>.</p>
<p>1878 <italic>Hemiaster pseudofourneli</italic> sp. nov. P&#x00C9;RON &#x0026; GAUTHIER in COTTEAU <italic>et al</italic>., p. 113, pl. 4, figs. 5-8.</p>
<p>1914 <italic>Hemiaster pseudofourneli</italic> P&#x00C9;RON &#x0026; GAUTHIER &#x2013; FOURTAU, p. 82, 109.</p>
<p>1963 <italic>Hemiaster pseudofourneli</italic> P&#x00C9;RON &#x0026; GAUTHIER &#x2013; FAWZI, p. 14.</p>
<p>1995 <italic>Mecaster pseudofourneli</italic> P&#x00C9;RON &#x0026; GAUTHIER &#x2013; N&#x00C9;RAUDEAU, p. 418, fig. 6 d-e; text-fig. 7.</p>
<p>2002 <italic>Mecaster pseudofourneli</italic> P&#x00C9;RON &#x0026; GAUTHIER &#x2013; AHMAD &#x0026; ABDELHAMID, p. 459, figs. 5. 1-4, 6, 8.</p>
<p>2011 <italic>Mecaster pseudofourneli</italic> P&#x00C9;RON &#x0026; GAUTHIER &#x2013; AYOUB-HANNAA, p. 273, pl. 34, fig. 6.</p>
<p><bold>Description:</bold> Esp&#x00E8;ce de taille moyenne, sub-hexagonale &#x00E0; ovale. Surfaces apicale et adorale convexes. Zone porif&#x00E8;re petite et &#x00E9;troite. Pores &#x00E9;gaux, obliques et non conjugu&#x00E9;s.</p>
<p><bold>Discussion:</bold> <italic>Hemiaster pseudofourneli</italic> diff&#x00E8;re de <italic>Hemiaster newtoni</italic> en ayant plus de p&#x00E9;tales plus &#x00E9;troits et de taille &#x00E9;gale. <italic>Hemiaster cubicus</italic> (DESOR, <xref ref-type="bibr" rid="cit0011">1847</xref>) est caract&#x00E9;ris&#x00E9; par un p&#x00E9;ristome extr&#x00EA;mement excentrique tr&#x00E8;s proche de la marge ant&#x00E9;rieure, d&#x2019;un petit p&#x00E9;riprocte et des sulcatures ant&#x00E9;rieures profondes.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Alg&#x00E9;rie (P&#x00E9;ron &#x0026; Gauthier, <xref ref-type="bibr" rid="cit0071">1878</xref>), &#x00C9;gypte (Fawzi, <xref ref-type="bibr" rid="cit0102">1963</xref>; Ayoub-Hannaa, <xref ref-type="bibr" rid="cit0023">2011</xref>), Jordanie (Ahmad &#x0026; Abdelhamid, <xref ref-type="bibr" rid="cit0012">2002</xref>) et Arabie Saoudite (N&#x00E9;raudeau, <xref ref-type="bibr" rid="cit0168">1995</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 2 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; A.</p>
<p>Esp&#x00E8;ce: <bold><italic>Hemiaster batnensis</italic></bold> (COQUAND, <xref ref-type="bibr" rid="cit0066">1862</xref>)</p>
<p><xref ref-type="fig" rid="f0007">Fig. 7.11</xref>.</p>
<p>1862 <italic>Hemiaster batnensis</italic> COQUAND, p. 248, pl. 26, figs. 6-8.</p>
<p>1914 <italic>Hemiaster batnensis</italic> COQUAND &#x2013; FOURTAU, p. 66.</p>
<p>1991 <italic>Mecaster batnensis</italic> COQUAND &#x2013; SMITH &#x0026; BENGSTON, p. 56-60, figs. 46-47, 48a, 49; pls. 12-13.</p>
<p>2012 <italic>Mecaster batnensis</italic> COQUAND &#x2013; BENYOUCEF <italic>et al</italic>., pl. 2, fig. 7a-b.</p>
<p>2013 <italic>Mecaster batnensis</italic> COQUAND &#x2013; RONEY, p. 11, 12, fig. 5.1-14.</p>
<p><bold>Description:</bold> Coquille arrondie polygonale, &#x00E0; angles tr&#x00E8;s obtus sur les cot&#x00E9;s. Elle est coup&#x00E9;e verticalement en arri&#x00E8;re et l&#x00E9;g&#x00E8;rement sinueuse &#x00E0; l&#x2019;aire anale. Un dessus assez plat et un dessous convexe, avec des d&#x00E9;pressions ambulacaires peu marqu&#x00E9;es.</p>
<p><bold>Discussion:</bold> Cette esp&#x00E8;ce montre des ressemblances avec <italic>Priaster fourneli</italic> et surtout avec <italic>Hemiaster verneuilli</italic>. Elle diff&#x00E8;re du premier par l&#x2019;absence de sillon lat&#x00E9;ral distinctif du genre, sa forme plus aplatie, ses ambulacres beaucoup moins creus&#x00E9;s et par les sinuosit&#x00E9;s ant&#x00E9;rieure et post&#x00E9;rieure bien moins concaves; et duu second par sa plus grande taille, son aire anale plus sinueuse et moins &#x00E9;lev&#x00E9;e, son p&#x00E9;riprocte toujours acumin&#x00E9; et enfin par sa largeur inf&#x00E9;rieure &#x00E0; sa longueur.</p>
<p><bold>R&#x00E9;partition:</bold> C&#x00E9;nomanien: Br&#x00E9;sil et Texas (Smith &#x0026; Bengtson, <xref ref-type="bibr" rid="cit0211">1991</xref>), Egypte (El Qot, <xref ref-type="bibr" rid="cit0098">2006</xref>) et Alg&#x00E9;rie (Coquand, <xref ref-type="bibr" rid="cit0066">1862</xref>; Busson <italic>et al</italic>., <xref ref-type="bibr" rid="cit0051">1999</xref>; Benyoucef <italic>et al</italic>., <xref ref-type="bibr" rid="cit0035">2012</xref>).</p>
<p><bold>Mat&#x00E9;riel:</bold> 5 sp&#x00E9;cimens trouv&#x00E9;s dans l&#x2019;unit&#x00E9; A.</p>
</sec>
</sec>
<sec id="sec7" sec-type="conclusion">
<title>Conclusion</title>
<p>La pr&#x00E9;sente &#x00E9;tude comporte de nombreux &#x00E9;l&#x00E9;ments in&#x00E9;dits &#x00E0; la connaissance de la macrofaune du C&#x00E9;nomanien sur un secteur-cl&#x00E9; de la marge africaine de la T&#x00E9;thys, en l&#x2019;occurrence, le Djebel Metrassi (Batna). L&#x2019;&#x00E9;tude taxonomique fait &#x00E9;tat d&#x2019;un corail, de 26 esp&#x00E8;ces de bivalves (8 ordres, 15 familles), de 15 esp&#x00E8;ces de gast&#x00E9;ropodes (5 ordres, 10 familles et 13 genres), de 3 esp&#x00E8;ces d&#x2019;ammonites et de 6esp&#x00E8;ces d&#x2019;&#x00E9;chinides (3 ordres et 3 familles). Elle permet l&#x2019;&#x00E9;tablissement d&#x2019;une subdivision de la s&#x00E9;rie c&#x00E9;nomanienne et r&#x00E9;v&#x00E8;le d&#x2019;&#x00E9;troites similitudes avec les taxons r&#x00E9;colt&#x00E9;s au sud de la T&#x00E9;thys. L&#x2019;homog&#x00E9;n&#x00E9;it&#x00E9; de la faune c&#x00E9;nomanienne et sa large r&#x00E9;partition g&#x00E9;ographique en font un marqueur &#x00E0; affinit&#x00E9; pal&#x00E9;o-biog&#x00E9;ographique permettant des corr&#x00E9;lations pr&#x00E9;cises pour les r&#x00E9;gions nord-africaines. Elle t&#x00E9;moigne, &#x00E9;galement, de la stabilit&#x00E9; environnementale relative des conditions pal&#x00E9;o-&#x00E9;cologiques au cours du C&#x00E9;nomanien. Elle est significative de d&#x00E9;p&#x00F4;ts de mer peu profonde, bien oxyg&#x00E9;n&#x00E9;e et avec un hydrodynamisme moyen &#x00E0; calme sur un substrat vaseux. Ainsi, une s&#x00E9;dimentation de type plate-forme carbonat&#x00E9;e s&#x2019;installe dans les monts de Bellezma durant le C&#x00E9;nomanien, avec une faune de macro-invert&#x00E9;br&#x00E9;s abondante et diversifi&#x00E9;e.</p>
</sec>
</body>
<back>
<ack>
<title>REMERCIEMENTS</title>
<p>Les auteurs remercient vivement M. Makhloufi Ayoub pour son aide et son assistance sur le terrain. Leur gratitude va &#x00E9;galement aux deux rapporteurs anonymes qui ont contribu&#x00E9;, par leurs remarques et leurs commentaires constructifs, &#x00E0; l&#x2019;am&#x00E9;lioration du manuscrit pr&#x00E9;liminaire.</p>
</ack>
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