Vertebrates of the El Pelillal locality (Campanian, Cerro del Pueblo Formation), southeastern Coahuila, Mexico

A new locality named El Pelillal (Cerro del Pueblo Formation, Late Cretaceo us, Campanian) in the southeastern area of the State of Coahuila, Mexico yi elds an assemblage of vertebrates that is important for correlation due to its frequent occurrence in other localities along the Cerro del Pueblo Form ation outcrops. It is located in the Municipio de Ramos Arizpe, Coahuila. A mong the vertebrates found are: fishes (Lepisosteidae; Amiidae [cf. Melvius sp.]); turtles (Trionychidae, Chelydridae [cf. Protochelydra sp.], Kinoste rnoidea [cf. Hoplochelys sp.], an undetermined kinosternoid genus, and ?Ple urosternidae [Compsemys victa]); Crocodilians Neosuchia (Goniopholididae); and Eusuchia and a pterosaur (Pterodactyloidea). Dinosaurs found include a hadrosaurine hadrosaur, a new Troodontidae, and other indeterminate theropo ds. The Fl Pelillal Locality is interpreted as a freshwater environment pos sibly influenced by tides. The fauna of the Fl Pelillal locality, Cerro del Pueblo Formation, resembles southern U.S. Campanian-Maastrichtian faunas b ut lacks the prevalence of baenid, adocid, Basilemys and Nanhsuingchelyd tu rtles.