Presence of the complex Mammuthus hayi/meridionalis (Proboscidea: Elephantidae) in the Pleistocene of Aguascalientes, Central Mexico

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  • Presence of the complex Mammuthus hayi/meridionalis (Proboscidea: Elephantidae) in the Pleistocene of Aguascalientes, Central Mexico

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Title


Presence of the complex Mammuthus hayi/meridionalis (Proboscidea: Elephantidae) in the Pleistocene of Aguascalientes, Central Mexico

Subject

S5-2, S6-3, General session, poster

Description

Abstract:

According to the published records the presence of six species for the genus Mammuthus (Proboscidea: Elephantidae) is suggested for Mexico (Arroyo-Cabrales et. al 2003a, Osborn 1922), and much confusion has been caused trying to validate these species, in part due to the negative of modern workers to review critically the older literature and to their fail to locate and study the original fossil material, as well as to incomplete descriptions and lack of illustrations and measurements of the described specimens by the early researchers (some of these have even been the basis of the erection of new species) (Arroyo-Cabrales et al. 2003 a and b).

Some workers have suggested the presence of two species for the genus in Mexico: Mammuthus hayi, for the Middle Pleistocene, and M. columbi for the Late Pleistocene. In the case of M. hayi, Arroyo-Cabrales et al. (2003b) indicate that the features observed in the specimens are similar to those of M. meridionalis (up to 12 plates for upper molars, and a lamellar frequency of 4.1, while for lower molars 11 or 12 plates are present with a lamellar frequency of 4), but since this species is considered doubtful for America, and following Webb and Dudley’s (1995) proposal, he assigned these specimens to M. hayi.

Authors:

GUZMAN-GUTIERREZ Jose Ruben1 and AGUILAR Felisa J.2

Affiliations

1 Instituto de Historia Natural de Aguascalientes, Condominio Los Robles 311-18, Rinconada de La Alameda Aguascalientes, Ags., 20198, Aguascalientes, MEXICO, paleovert@yahoo.com.mx
2 Instituto Nacional de Antropología e Historia

Creator

Guzman-Gutierrez, Jose Ruben
Aguilar, Felisa J.

Date

August 2010

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Citation

Guzman-Gutierrez, Jose Ruben and Aguilar, Felisa J.. " Presence of the complex Mammuthus hayi/meridionalis (Proboscidea: Elephantidae) in the Pleistocene of Aguascalientes, Central Mexico ," in BoneCommons, Item #1202, http://alexandriaarchive.org/bonecommons/items/show/1202 (accessed October 21, 2019).