Aspectos paleobiológicos de dos ejemplares de Mammuthus columbi (Mammalia, Proboscidea, Elephantidae) del Pleistoceno de Puebla, centro de México
Year: 2017
Type: article
Abstract: Two specimens of Mammuthus columbi from two Pleistocene localities in the central-eastern of Puebla are formally described (CRINAH-2274 and CRINAH-2275), based on cranial, appendicular elements and isolated molar, and some paleobiological aspects are discussed.The specific assignment of the specimens is based mainly on the characteristics of the M3, which exhibit a lamellar frequency of 5 to 7, strongly crenulated enamel with a thickness of 1.5 to 3.8 mm and has 20 to 22 plates.The age of both individuals was estimated; the CRINAH-2274 specimen has 34 AEY, while the estimated age for CRINAH-2275 was 37 to 41 AEY.Only the sex of CRI-NAH-2274 could be established, which is a male.Lastly, mesowear angle analysis was carried out to characterize the diet and habitat; this method is used for the firts time in Mexico.Our results show that both specimens were strictly grazers (> 130°) with a diet based mainly on grasses.This suggests the existence of open habitats in the central-eastern region of Puebla in the Pleistocene.
Language: Spanish
Subfield: Paleontology
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2768906201