Ornithischia  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Reptilia
 ....Diapsida
 .....Archosauria
 ......Ornithischia
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Reptilia
 ....dinosaurs
 .....Ornithischia
NTAnkylosauria
 Ceratopsia
 Ornithopoda
 Stegosaurus
SNOrder. This term has multiple hierarchies.