Infraphylum Tetrapoda Goodrich, 1930 see Clade Tetrapoda Hatschek & Cori 1896 [Laurin 2020]
   Superclass Amniota Haeckel, 1866 see Clade Amniota Haeckel 1866 [Laurin & Reisz 2020]
     Paraclass Reptilia Linnaeus, 1758 [paraphyletic] - reptiles
       Parasubclass Diapsida Osborn, 1903 [paraphyletic] - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
         Parainfraclass Archosauria Cope, 1869 [paraphyletic] see Clade Archosauria Cope 1869 [Gauthier & Padian 2020]
           Superorder †Ornithischia Seeley, 1887 see Order Ornithischia Seeley, 1887
             Paraorder †Pachycephalosauria Maryañska & Osmólska, 1974 [paraphyletic] see Infraorder Pachycephalosauria Maryañska & Osmólska, 1974
               Parafamily †Homalocephalidae Dong, 1978 [paraphyletic] see Family Pachycephalosauridae Sternberg, 1945
                 1 Genus †Goyocephale Perle, Maryanska & Osmólska, 1982
                 2 Genus †Homalocephale Maryañska & Osmólska, 1974
                 3 Genus †Micropachycephalosaurus Dong, 1978
                 4 Genus †Taveirosaurus Telles Antunes & Sigogneau-Russell, 1991
                 5 Genus †Wannanosaurus Hou, 1977