Análisis paleontológicos a través límite Ediacárico-Cámbrico, Grupo Alto Corumbá, Brasil

R.R. Adôrno; D.H.G. Walde; D.A. Do Carmo; M. Denezine; I. Cortijo; E.A.M. Sanchez; T.C. Tobias; G. Fazio; L.V. Warren; B.D. Erdtmann; Y. Cai; M. Giorgioni; M.E.A.F. Ramos; M.C. Baptista; E.M. Guimarães; M. F. Figueiredo; G.J. Germs

doi:10.3989/egeol.43586.549

Authors

R.R. Adôrno University of Brasília, Institute of Geosciences - Geological Survey of Brazil, Center for Technological Development-CEDES https://orcid.org/0000-0003-1781-0694
D.H.G. Walde University of Brasília, Institute of Geosciences https://orcid.org/0000-0001-5324-5480
D.A. Do Carmo University of Brasília, Institute of Geosciences https://orcid.org/0000-0002-1613-7242
M. Denezine University of Brasília, Institute of Geosciences https://orcid.org/0000-0003-4629-0907
I. Cortijo Área de Paleontología, Facultad de Ciencias, Universidad de Extremadura https://orcid.org/0000-0002-6027-9002
E.A.M. Sanchez Centro de Estudos em Geociências, Instituto de Ciência e Tecnologia, Universidade Federal dos Vales do Jequitinhonha e Mucuri https://orcid.org/0000-0002-1136-733X
T.C. Tobias University of Brasília, Institute of Geosciences https://orcid.org/0000-0001-6290-1910
G. Fazio University of Brasília, Institute of Geosciences https://orcid.org/0000-0003-3325-5096
L.V. Warren Departamento de Geologia Aplicada, Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista https://orcid.org/0000-0002-2050-6514
B.D. Erdtmann Freie Universität Berlin (FUB) https://orcid.org/0000-0002-0136-7854
Y. Cai State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University https://orcid.org/0000-0002-9867-8156
M. Giorgioni University of Brasília, Institute of Geosciences https://orcid.org/0000-0003-0565-3150
M.E.A.F. Ramos University of Brasília, Institute of Geosciences https://orcid.org/0000-0002-1741-3210
M.C. Baptista University of Brasília, Institute of Geosciences - Geological Survey of Brazil - Center for Technological Development-CEDES https://orcid.org/0000-0002-1178-5208
E.M. Guimarães University of Brasília, Institute of Geosciences https://orcid.org/0000-0002-2383-3254
M. F. Figueiredo PETROBRAS-CENPES-PDGEO/BPA https://orcid.org/0000-0002-7778-6190
G.J. Germs Department of Geology, University of the Free State https://orcid.org/0000-0003-3622-0788

DOI:

https://doi.org/10.3989/egeol.43586.549

Keywords:

Ediacaran-Cambrian, Corumbá Group, Biostratigraphy, Micropaleontology

Abstract

This work presents the results of a palaeontological analysis focused on twenty-six species sampled in five sections of the Tamengo and Guaicurus formations, Corumbá and Ladário regions: Corcal and Laginha quarries, Porto Sobramil, Porto Figueiras and Ecoparque Cacimba. Besides, palaeoecological and palaeoenvironmental inferences are presented based on the occurrence of this fossil assemblage. Cloudina carinata Cortijo et al., 2010, previously documented in Spain and Siberia, presents an unprecedented occurrence in the American continent, in siltstones of the Tamengo Formation at Porto Figueiras section, Municipality of Corumbá, Mato Grosso do Sul State, Brazil. The biota of the Tamengo Formation is updated and composed of three biomineralizing metazoans, including poriferan spicules, putative sponge gemmule, and a sessile epibiontic prokaryotic colony. The present work also deals with the taxonomy and stratigraphic distribution of four ichnospecies and three vendotaenid species that integrate the updated benthic fauna for the upper portion of Corumbá Group. The species diversity of the Tamengo Formation was complemented by the occurrence of sixteen microfossil species that possibly represent a marine planktic assemblage. A dramatic change was identified in the palaeoenvironmental conditions of the Tamengo to Guaicurus formations, followed by a mass extinction event, possibly linked to the global Ediacaran- Cambrian mass extinction. In addition, organic-walled microfossils were prepared and analyzed from sections of three countries: nine species from the Nomtsas Formation, Namibia; four species from the Tagatiya Guazu Formation, Paraguay; and six species from the Dengying Formation, China. An international biostratigraphic essay consisting of six biozones is proposed for the uppermost Ediacaran and one biozone for the earliest Cambrian.

Downloads

Download data is not yet available.

References

Adôrno, R.R. (2019). Taxonomy, paleoecology and chronobiostratigraphy across the Ediacaran-Cambrian boundary: Tamengo and Guaicurus formations. PhD, University of Brasília.

Adôrno, R.R., Do Carmo, D.A., Walde, D.H.G., Denezine, M., Boggiani, P.C., Sousa e Silva, S.C., Vasconcelos, J.R., Tobias, T.C., Guimarães, E.M., Vieira L.C., Figueiredo, M.L.CF., Moraes, R., Caminha, S.A., Suarez, P.A.Z., Pinho, D. & Rodriguez, C.G.V. (2016). Biostratigraphy of Neoproterozoic strata based on invertebrate species from South America. 35th International Geological Congress, Capetown, Session: The Dawn of Animals, Abstracts, 41-44.

Adôrno, R.R., Do Carmo, D.A., Walde, D.H., Denezine, M., Boggiani, P.C., Sousa, S.C., Vasconcelos, J.R., Tobias, T.C., Guimarães, E.M., Vieira, L.C., Figuereido, M.F., Caminha, S.A., Suarez, P.A.Z., Rodriguez, C.G.V., Pinho, D.M., Schneider, G. & Muyamba, R. (2017). Cloudina lucianoi (Beurlen & Sommer, 1957), Tamengo Formation, Ediacaran, Brazil: taxonomy, analysis of stratigraphic distribution and biostratigraphy. Precambrian Research, 301: 19-35. https://doi.org/10.1016/j.precamres.2017.08.023

Beurlen, K. & Sommer, F.W. (1957). Observações estratigráficas e paleontológicas sobre o calcário Corumbá. Rio de Janeiro. Departamento Nacional de Produção Mineral, Divisão de Geologia e Mineralogia, Boletim, 168: 1-35.

Cortijo, I., Martí Mus, M., Jensen, S. & Palacios, T. 2010. A new species of Cloudina from the terminal Ediacaran of Spain. Precambrian Research, 176: 1-10. https://doi.org/10.1016/j.precamres.2009.10.010

Denezine, M. (2018). Microfósseis orgânicos da Formação Sete Lagoas, Município de Januária, Estado de Minas Gerais, Brasil: taxonomia e análise bioestratigráfica. Dissertação de mestrado, Universidade de Brasília, Brasília, DF.

Eisenack, A. (1958). Mikrofossilien aus dem Ordovizium des Baltikums. 1. Markasitschichte Dictyonema- Schiefer, Glaukonitsand, Gluakonitkalk. Senckenbergiana lethaea, 29 (5-6): 389-405.

Emmons, E. (1844). The Taconic System; based on observations in New York, Massachusetts, Maine, Vermont and Rhode Island. Caroll and Cook ed., Albany, 68 p.

Gaucher, C., Poire, D.G., Gomez Peral, L. & Chiglino, L. (2005). Litoestratigrafia, bioestratigrafia y correlaciones de las sucesiones sedimentarias del Neoproterozoico-Cámbrico del Cratón del Río de La Plata (Uruguay y Argentina). Latin American Journal of Sedimentology and Basin Analysis, 12: 145-160.

Hagadorn, J. W. & Waggoner, B. (2000). Ediacaran fossils from the Southwestern Great Basin, United States. Journal of Paleontology, 74: 349-359. https://doi.org/10.1666/0022-3360(2000)074<0349:EFFTSG>2.0.CO;2

Hahn, G., Hahn, R., Leonardos, O. H., Pflug, H. D. & Walde, D.H.G. (1982). Korperlich erhaltene Scyphozoen - Reste aus dem Jungprakambrium Braziliens. Geologica et Palaeontologica, 16: 1-18.

Hofmann, H.J. & Aitken, J.D. (1979). Precambrian biota from the Little Dal Group, Mackenzie Mountains, northwestern Canada. Canadian Journal of Earth Sciences, 16: 150-166. https://doi.org/10.1139/e79-014

Hofmann, H.J. & Mountjoy, E.W. (2001). Namacalathus- Cloudina assemblage in Neoproterozoic Miette Group (Byng Formation), British Columbia: Canada's oldest shelly fossils. Geology, 29: 1091-1094. https://doi.org/10.1130/0091-7613(2001)029<1091:NCAINM>2.0.CO;2

Kontorovich, A.E., Sokolovb, B.S., Kontorovich, V. A., Varlamov, A. I., Grazhdankin, D.V., Efimov, A.S., Klets, A.G., Saraev, S.V., Terleev, A.A., Belyaev, S.Yu., Varaksina, I.V., Karlova, G.A., Kochnev, B.B., Nagavitsin, K.E., Postnikov, A.A. & Filippov, Yu. F. (2009). The first section of Vendian deposits in the Basement Complex of the West Siberian Petroleum Megabasin (resulting from the drilling of the Vostok-3 parametric borehole in the Eastern Tomsk Region). Doklady Earth Sciences, 425: 219-222. https://doi.org/10.1134/S1028334X09020093

Naumova, S.N. (1949). Spores from the lower Cambrian. Izvestiya Akademii Nauk SSSR, Seriya Geologicheskaya, 4: 49-56 [in Russian].

Parry, L., Boggiani, P.C., Condon, D., Garwood, R., Leme, J.M., McIlroy, D., Brasier, M.D., Trindade, R., Campanha, G.A.C., Pacheco, M.L.A.F., Diniz, C.Q.C. & Liu, A.G. (2017). Ichnological evidence for meiofaunal bilaterians from the terminal Ediacaran and earliest Cambrian of Brazil. Nature Ecology & Evolution, 1: 1455-1464. https://doi.org/10.1038/s41559-017-0301-9 PMid:29185521

Rouault, M. (1850). Note préliminaire sur une nouvelle formation découverte dans la terrain silurien inférieur de la Bretagne. Bulletin de la Société géologique de France (série 2), 7: 724-744.

Smith, E.F., Nelson, L.L., Tweedt, S.M., Zeng, H. & Workman, J.B. (2017). A cosmopolitan late Ediacaran biotic assemblage: new fossils from Nevada and Namibia support a global biostratigraphic link. Proceedings of the Royal Society B, 284: 20170934. https://doi.org/10.1098/rspb.2017.0934 PMid:28701565 PMCid:PMC5524506

Sommer, E.W. (1971). Microfósseis do calcário Bambuí, de Pedro Leopoldo, Estado de Minas Gerais. Anais Academia Brasileira de Ciências, 43: 135-139.

Timofeev, B.V. (1966). Micropaleophytological research into ancient strata. Nauka, Leningrad, 147 p. [English translation 1974, British Library-Landing Div., London, 214 p.].

Timofeev, B.V., Hermann, T.N. & Mikhaylova, N.S. (1976). Microfossils from the Precambrian, Cambrian and Ordovician (Mikrofitofossilii dokembryia kembryia i ordovika), 107 pp. Nauka, Leningrad [in Russian].

Uchman, A. (1999). Ichnology of the Rhenodanubian flysch (Lower Cretaceous-Eocene) in Austria and Germany. Beringeria, 25: 65-171.

Uchman, A. (2001). Eocene flysch trace fossils from the Hecho Group of the Pyrenees, northern Spain. Beringeria, 28: 3-41.

Vidal, G. (1976). Late Precambrian microfossils from the Visingso beds in southern Sweden. Fossils and Strata, 9: 1-57.

Walcott, C.D. (1899). Precambrian fossiliferous formations. Geological Society of America Bulletin, 19: 199-244. https://doi.org/10.1130/GSAB-10-199

Warren, L.V., Fairchild, T.R., Gaucher, C., Boggiani, P.C., Poiré, D.G., Anelli, L.E. & Inchausti, J.C.G. (2011). Corumbella and in situ Cloudina in association with thrombolites in the Ediacaran Itapucumi Group, Paraguay. Terra Nova, 23: 382-389. https://doi.org/10.1111/j.1365-3121.2011.01023.x

Warren, L.V., Simoes, M.G., Fairchild, T.R., Riccomini, C., Gaucher, C., Anelli, L. E., Freitas, B. T., Boggiani, P.C. & Quaglio, F. (2013). Origin and impact of the oldest metazoan bioclastic sediments. Geology, 41: 507-510. https://doi.org/10.1130/G33931.1

Warren, L.V., Quaglio, F., Riccomini, C., Simões, M.G., Poiré, D.G., Strikis, N.M., Anelli, L.E. & Strikis, P.C. (2014). The puzzle assembled: Ediacaran guide fossil Cloudina reveals an old proto-Gondwana seaway. Geology, 42: 391-394. https://doi.org/10.1130/G35304.1

Warren, L.V., Quaglio, F., Simões, M.G., Gaucher, C., Riccomini, C., Poiré, D.G., Freitas, B.T., Paulo C. Boggiani & Sial A.N. (2017). Cloudina-Corumbella-Namacalathus association from the Itapucumi Group, Paraguay: Increasing ecosystem complexity and tiering at the end of the Ediacaran. Precambrian Research, 298: 79-87. https://doi.org/10.1016/j.precamres.2017.05.003

Warren, L.V., Freitas, B.T., Riccomini, C., Boggiani, P.C., Quaglio, F., Simões, M.G., Fairchild, T.R., Giorgioni, M., Gaucher, C., Poiré, D.G., Cáceres, A.A. & Sial, A.N. (2019). Sedimentary evolution and tectonic setting of the Itapucumi Group, Ediacaran, northern Paraguay: From Rodinia break-up to West Gondwana amalgamation. Precambrian Research, 322: 99-121. https://doi.org/10.1016/j.precamres.2018.12.022

Zaine, M.F. (1991). Análise dos fósseis de parte da Faixa Paraguay (MS, MT) e seu contexto temporal e paleoambiental. PhD, University of São Paulo.

Zang, W. & Walter, M.R. (1992). Late Proterozoic and early Cambrian microfossils and biostratigraphy, northern Anhui and Jiangsu, central-eastern China. Precambrian Research, 57: 243-323. https://doi.org/10.1016/0301-9268(92)90004-8