Nuevos vertebrados fósiles de la Formación El Castellar en Gúdar, Teruel, España (Barremiense inferior, Cretácico Inferior)

Abstract

It has been described the fossil assemblages from two new vertebrate sites (Caña Seca and Carretera Allepuz-Gúdar) in the municipality of Gúdar (Teruel) which are located within the upper El Castellar Formation lower Barremiense in age. The El Castellar Formation (Valanginian?-lower Barremian)shows an exceptional richness in fossil vertebrates, whereas macrovertebrates are usually fragmentary remains. Fossils from Gúdar belonging to chondrichthyans (Hybodus, Planohybodus, Ptychotrygonidae?), osteychthyans (Amiiformes, Semionotiformes, Pycnodontiformes, Arcodonichthys sp.), lissamphibians (Lissamphibia), turtles (Quelonia, Solemydidae), crocodrilomorphs (Goniopholididae, Atoposauridae, cf. Bernissartia, Unasuchus?), and theropod (aff. Baryonyx, Carcharodontosauridae?, Coelurosauria) and ornithopod dinosaurs (Iguanodontia), have been recognized. This record constitutes the first report for this Formation of the pycnodontiform Arcodonichthys sp., (two vomerine plates and one isolated tooth), the possible Ptychotrygonidae (tooth fragment) and some mid- to big-sized-theropod (ilium Coelurosauria indet., vertebra of a possible carcharodontosaurid and phalanx aff. Baryonyx).