Pachycephalosauria Daftar genus dinosaurus Fabrosaurus Abrictosaurus Xiaosaurus Thescelosaurus Orodromeus Marginocephalia Leptoceratops Styracosaurus Wannanosaurus Beg tse Chaoyangsaurus Yinlong Zuniceratops Homalocephale Stygimoloch Pentaceratops Centrosaurinae Centrosaurus Ceratopsidae Pachycephalosaurus Psittacosaurus Triceratops