Predefinição:Ornithischia vdeOrnithischia Reino: Animalia Filo: Chordata Classe: Sauropsida Clado: Avemetatarsalia Clado: Dinosauria Avemetatarsalia ver Avemetatarsalia Ornithischia ver abaixo↓ OrnithischiaOrnithischia Chilesaurus? Dravidosaurus? Eocursor Laquintasaura Pisanosaurus? Silesauridae? SaphornithischiaHeterodontosauridae Echinodon Fruitadens Tianyulong Heterodontosaurinae Abrictosaurus Heterodontosaurus Lycorhinus Manidens Pegomastax GenasauriaThyreophora ver Thyreophora inclui Stegosauria e Ankylosauria Neornithischia Agilisaurus Hexinlusaurus Hypsilophodon Kulindadromeus Leaellynasaura Lesothosaurus? Minimocursor Nanosaurus Phyllodon Sanxiasaurus Xiaosaurus Yandusaurus Jeholosauridae Changchunsaurus? Haya? Jeholosaurus Yueosaurus ThescelosauridaeOrodrominae Albertadromeus Koreanosaurus Orodromeus Oryctodromeus Zephyrosaurus Thescelosaurinae Changchunsaurus? Haya? Nevadadromeus Parksosaurus Thescelosaurus CerapodaMarginocephalia ver Marginocephalia inclui Pachycephalosauria e Ceratopsia Ornithopoda ver Ornithopoda inclui Iguanodontia Nomina dubia Alocodon Fabrosaurus Ferganocephale Fulgurotherium Geranosaurus Gongbusaurus Taveirosaurus Trimucrodon