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 †Pterosauria Kaup, 1834 see Order Pterosauria Kaup, 1834
             Order †Pterodactyloidia Plieninger, 1901 see Suborder Pterodactyloidea Plieninger, 1901
               Family †Ctenochasmatidae Nopcsa, 1928 see Family Ptenodraconidae Hooley, 1913
                 Genus †Gnathosaurus Meyer, 1834