Psittacosaurus

Diversity of Marginocephalians. Psittacosaurus, Pachycephalosaurus, Protoceratops, Triceratops, Stegoceras and Prenoceratops.

Six neornithischians (top to bottom): Psittacosaurus, Styracosaurus, Thescelosaurus, Kulindadromeus, Hypacrosaurus, Pachycephalosaurus

Six neornithischians (top to bottom): Psittacosaurus, Styracosaurus, Thescelosaurus, Kulindadromeus, Hypacrosaurus, Pachycephalosaurus

Six neornithischians (top to bottom): Psittacosaurus, Styracosaurus, Thescelosaurus, Kulindadromeus, Hypacrosaurus, Pachycephalosaurus

Psittacosaurus skeletal mount (Early Cretaceous, Jiufotang Formation) and unidentified Late Cretaceous dinosaur egg from Xixia, Hennan, on display in the Li Siguang Memorial Museum in Huangzhou.

A Psittacosaurus skeleton cast in the permanent collection of The Children’s Museum of Indianapolis.

A Psittacosaurus skeleton cast in the permanent collection of The Children’s Museum of Indianapolis.