Mamíferos fósiles del Pleistoceno tardío (Rancholabreano) de San Mateo Huexoyucán, Tlaxcala, México

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 identi ed, and six of them are new records for the study area. (Bison antiquus, cf. Bison occidentalis, Camelops hesternus, Equus mexicanus, Eremotherium laurillardi cf. Glyptotherium  oridanum). Also, three species which were mentioned in previous works, are formally recorded. (Cuvieronius hyodon, Equus conversidens andMammu- thus 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 se- quence of  uvisols with a calibrated age of 51798 ‒ 47650 B.P.