Articles

 

Boletín de la Sociedad Geológica Mexicana

Volumen 67, núm. 1, 2015, p. 13-20

http://dx.doi.org/10.18268/BSGM2015v67n1a2

First reported occurrence of Palaeolama mirifica (Camelidae, Lamini) from the Late Pleistocene (Rancholabrean) of Puebla, central Mexico

Victor M. Bravo-Cuevas1,*, Eduardo Jiménez-Hidalgo2

1 Museo de Paleontología, Área Académica de Biología, Universidad Autónoma del Estado de Hidalgo, Ciudad del Conocimiento, Carretera Pachuca-Tulancingo, km 4.5, C. P. 42184, Pachuca, Hidalgo, México.
2Laboratorio de Paleobiología, Instituto de Recursos, Campus Puerto Escondido, Universidad del Mar, Carretera Puerto Escondido-Oaxaca km 2.5, C.P. 71980, Oaxaca, México.

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Abstract

Palaeolama was a relatively rare camelid in North America during the Pleistocene. Here we report the first occurrence of P. mirifica in the Late Pleistocene of Puebla, central Mexico. This is the southernmost record of P. mirifica in North America, and fills in a geographic gap with a record of the species in Costa Rica. The fossil-bearing unit is composed of silt, fine sand, and scarce pebbles. This unit is partially correlative with the alluvial sequence of Axamilpa, Puebla, considered to be MIS 2 – 3 in age. Isotopic data and Mesowear III values indicate that P. mirifica from Barranca Xocoa was an intermediate feeder.

Keywords: Camelidae, Palaeolama, Puebla, Late Pleistocene, central Mexico.