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]
           Parasuperorder Thecodontia Owen, 1859 [paraphyletic]
             Order †Pseudosuchia Zittel, 1887-1890 see Clade Pseudosuchia Zittel 1887-1890 [Gauthier & Padian 1985]
               Suborder †Poposauria Olshevsky, 1991, nom. illeg. [monotypic] see Suborder Poposauria Nopcsa, 1923
                 Family †Teratosauridae Cope, 1871
                   Genus †Postosuchus Chatterjee, 1985