<i>Psittacosaurus xinjiangensis</i>(Ornithischia: Ceratopsia), a new psittacosaur from the Lower Cretaceous of northwestern China

Abstract

ABSTRACT A new species of psittacosaur, Psittacosaurus xinjiangensis, is based on one articulated skeleton and additional disarticulated material from several individuals. Diagnostic features of the species include an anteriorly flattened jugal horn, an unusually high denticle count on maxillary and dentary crowns, a proportionately narrow iliac postacetabular process, and ossified tendons that extend along the tail.