Order †Ornithischia Seeley, 1887
Parvorder †Genasauria Sereno, 1986
see Clade Genasauria Sereno 1986
Nanorder †Thyreophora Nopcsa, 1915
see Suborder Thyreophora Nopcsa, 1915
Hypoorder †Thyreophoroidea Nopcsa, 1928
see [unranked] Thyreophoroidea Nopcsa, 1928
Minorder †Eurypoda Sereno, 1986
see Clade Eurypoda Sereno 1986
Suborder †Stegosauria Marsh, 1877
see Infraorder Stegosauria Marsh, 1877
1 Genus †Huayangosaurus Dong, Tang & Zhou, 1982
2 Family †Stegosauridae Marsh, 1880