Boletín de la Sociedad Geológica Mexicana

Volumen 68, núm. 3, 2016, p. 497‒514

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

Miguel Sánchez Salinas, Eduardo Jiménez Hidalgo1, Carlos Castañeda Posadas2,*


1 Benemérita Universidad Autónoma de Puebla, Facultad de Ciencias Biológicas. Blvd. Valsequillo y Av. San Claudio, Edificio BIO-1, Ciudad Universitaria, Col. Jardines de San Manuel, C.P. 72570 Puebla, México.
2 Laboratorio de Paleobiología, Instituto de Recursos, Universidad del Mar, campus Puerto Escondido, km 2.5 Carretera Puerto Escondido-Sola de Vega, Puerto Escondido, Oaxaca, México. C.P. 71980.

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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 andMammuthus 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.