The most recently described species is Psittacosaurus gobiensis from Inner Mongolia. P. gobiensis, named for the region it was found in 2001, is a small-bodied (1 metre (3.3 ft) long) dinosaur described by Sereno, Zhao and Lin in 2010. It is known from a skull and partial articulated skeleton with gastroliths. P. gobiensis differs from other species of Psittacosaurus by "significant, but structurally minor, details." These include the presence of a pyramidal horn on the postorbital, a depression on the postorbital-jugal contact, and enamel thickness. P. mongoliensis was a contemporary.
Read more about this topic: List Of Psittacosaurus Species