BOLETÍN DE LA SOCIEDAD GEOLÓGICA MEXICANA Vol 61, Núm. 2, 2006, P. 277-286 http://dx.doi.org/10.18268/BSGM2009v61n2a15

Contribución al conocimiento de los rinocerontes fósiles de la Cuenca de Tecolotlán, en el estado de Jalisco, México

 Contribution to knowledge of fossil rhinoceros of the Tecolotlán Basin in the state of Jalisco, Mexico

Gerardo Carbot–Chanona^1,*, Javier Juárez–Woo², José Rubén Guzmán–Gutiérrez³

¹ Museo de Paleontología Eliseo Palacios Aguilera, Instituto de Historia Natural. Calzada de Los Hombres Ilustres s/n, C. P. 29000. Tuxtla Gutiérrez, Chiapas, México.
² Museo de Paleontología de Guadalajara Federico A. Solórzano Barreto. Dr. R. Michel 520, C. P. 44100, Guadalajara, Jalisco, México.
³ Departamento de Paleontología, Desarrollo Turístico El Caracol, SECTURE, Av. Perseo s/n. Aguascalientes, Aguascalientes, México.

 * This email address is being protected from spambots. You need JavaScript enabled to view it..

Abstract

Remains of Teleoceras hicksi (Perissodactyla, Rhinocerotidae), housed at the "Museo de Paleontologia "in Guadalajara and the "Museo Regional de Guadalajara", recovered from the fluvial lacustrine sediments in the Tecolotlán Basin are described. The studied material includes a partial skull bearing P²–M³ and one lower jaw preserving I₂ and P₃–M₃, the anterior part of an isolated lower jaw with left I₂ and P₃–M₃, one isolated lower jaw with P₃–M₃ dental series in wich the symphyseal region is missing, also isolated molars, two magnus, one left metacarpus III, and one first phalange of the right digit III. Morphological differences were observed in the material examined attributed to differences in age and/or sex of the individuals. Teleoceras hicksi was found associated with Dinohippus mexicanus, Nannippus aztecus, Neohipparion eurystyle, Astrohippus stockii and Borophagus secundus, suggesting a late Hemphillian age for thefaunal association.

Keywords: Tecolotlán Basin, Jalisco, Rhinocerotidae, Teleoceras hicksi, late Hemphillian.