Los mamíferos de la formación Río Quinto (Plioceno), provincia de San Luis (Argentina). Aspectos bioestratigráficos, zoogeográficos y paleoambientales
DOI:
https://doi.org/10.3989/egeol.98543-4214Keywords:
Mammals, Biostratigraphy, Palaeoenvironment, Chapadmalalan, Pliocene, San Luis, ArgentinaAbstract
A new faunal assemblage from cantera Díaz Nogarol, San Luis province (Argentina), is described. Xenarthrans, notoungulates, and rodents of five different families were identified: 1. Dasypodidae: Doellotatus chapalmalensis, Macrochorohates chapalmalensis, Maeroeuphractus retusus, Euphractini indet.; 2. Hegetotheriidae: Paedotherium typicum. Paedotherium insigne. Tremacyllus impressus; 3. Octodontidae: Actenomys sp., Pithanotomys sp., Eucelophorus cf. chapalmalensis sp.; 4. Caviidae: Pascualia cf. laeviplicata, Dolicavia minuscula, Caviodon multiplicatus; 5. Chinchillidae: Lagostomopsis sp. The presence of certain taxa such as D. minuscula, P. cf. laeviplicata and C. multiplicatus indicates a Chapadmalalan age for this faunal assemblage within the Late Pliocene. The xenarthran and the pachyrukhine taxa suggest a zoogeographic connexion between the subandean and the pampean regions during that time. The mammal association indicates open habitats, with arid-semiarid paleoenvironmental conditions.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 1998 Consejo Superior de Investigaciones Científicas (CSIC)
This work is licensed under a Creative Commons Attribution 4.0 International License.
© CSIC. Manuscripts published in both the print and online versions of this journal are the property of the Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.
All contents of this electronic edition, except where otherwise noted, are distributed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence. You may read the basic information and the legal text of the licence. The indication of the CC BY 4.0 licence must be expressly stated in this way when necessary.
Self-archiving in repositories, personal webpages or similar, of any version other than the final version of the work produced by the publisher, is not allowed.
