Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
   †Ornithischia Seeley 1887 [Padian & May 1993] see Order Ornithischia Seeley, 1887
     †Genasauria Sereno 1986
       †Thyreophora Nopcsa 1915 see Suborder Thyreophora Nopcsa, 1915
         1 Genus †Scutellosaurus Colbert, 1981
         2.1 Genus †Emausaurus Haubold, 1990
         2.2.1 Genus †Scelidosaurus Owen, 1859, nom. cons.
         2.2.2 †Eurypoda Sereno 1986