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.
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Published
1998-08-30
How to Cite
Prado, J. L., Chiesa, J., Tognelli, G., Cerdeño, E., & Strasser, E. (1998). Los mamíferos de la formación Río Quinto (Plioceno), provincia de San Luis (Argentina). Aspectos bioestratigráficos, zoogeográficos y paleoambientales. Estudios Geológicos, 54(3-4), 153–160. https://doi.org/10.3989/egeol.98543-4214
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