A New Protoceratopsid (Dinosauria: Neoceratopsia) from the Late Cretaceous of Inner Mongolia, China

摘要

An almost complete skull, which was collected from the Upper Cretaceous of the Bayan Mandahu area inInner Mongolia, China by the Sino-Canadian Dinosaur Project, is described and assigned to a new genus ofprotoceratopsid dinosaur, Magnirostris dodsoni gen. et sp. nov. This new taxon is distinguished from otherprotoceratopsids by the robust rostral bone and the existence of incipient orbital horn cores. The existence of an additionalantorbital fenestra indicates a close relationship between Magnirostris and Bagaceratops.