Abstract

SANCHEZ SALINAS, Miguel; JIMENEZ HIDALGO, Eduardo  and  CASTANEDA POSADAS, Carlos. Mamíferos fósiles del Pleistoceno tardío (Rancholabreano) de San Mateo Huexoyucán, Tlaxcala, México. Bol. Soc. Geol. Mex [online]. 2016, vol.68, n.3, pp.497-514. ISSN 1405-3322.

In this paper, fossils of pleistocene mammals from the area of San Mateo Huexoyucan, Tlaxcala, Mexico, are described. Right now these fossils are housed in the Paleontological Collection of the Benemérita Universidad Autónoma de Puebla (BUAP). Nine species were identified, and six of them are new records for the study area. (Bison antiquus , cf. Bison occidentalis , Camelops hesternus , Equus mexicanus, Eremotherium laurillardi cf. Glyptotherium floridanum). Also, three species which were mentioned in previous works, are formally recorded. (Cuvieronius hyodon, Equus conversidens and Mammuthus sp.). The presence of Bison , allows to give a Rancholabrean Land Mammal Age (Late Pleistocene) to the faunal assemblage. In line with this, fossils come from a sequence of fluvisols with a calibrated age of 51798 - 47650 B.P.

Keywords : Mammals; Rancholabrean; Tlaxcala; Mexico; Pleistocene.

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