Abstract

RIVERA-SYLVA, Héctor E. et al. The first crocodyliforms remains from La Parrita locality, Cerro del Pueblo Formation (Campanian), Coahuila, Mexico. Bol. Soc. Geol. Mex [online]. 2019, vol.71, n.3, pp.727-739.  Epub Dec 14, 2019. ISSN 1405-3322.  https://doi.org/10.18268/bsgm2019v71n3a6.

The record of land tetrapods of the Cerro del Pueblo Formation (Late Cretaceous, Campanian), in Coahuila, includes turtles, pterosaurs, dinosaurs, and crocodyliforms. This last group is represented only by goniopholidids, indeterminate eusuchians, and Brachychampsa montana. In this work we report the first crocodyliform remains from La Parrita locality, Cerro del Pueblo Formation, based on one isolated tooth, vertebrae, and osteoderms. The association of crocodyliforms, turtles, dinosaurs, and charophyte oogonia provide evidence for stagnant to fluvial environments on a delta plain with tropical climate for the Cerro del Pueblo Formation during the Late Cretaceous.

Keywords : Crocodyliforms; Globidonta; Late Cretaceous; Coahuila; Mexico.