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View pageSix 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