Vertebrata Cuvier, 1812 - vertebrates
   Gnathostomata
     Teleostomi
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
         Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
           Class Reptilia Linnaeus, 1758 [paraphyletic] - reptiles
             Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
               Infraclass Archosauromorpha Huene, 1946 see Clade Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval.
                 Superorder Archosauria Cope, 1869 - archosaurs see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
                   Order †Thecodontia Owen, 1859 see Division Archosauria Cope, 1869
                     Suborder †Proterosuchia Broom, 1906 see Order Proterosuchia Broom, 1906
                       Family †Proterosuchidae von Huene, 1908
                         1 Genus †Archosaurus Tatarinov, 1960
                         2 Genus †Chasmatosaurus Haughton, 1924 see Genus Proterosuchus Broom, 1903
                         3 Genus †Chasmatosuchus Huene, 1940
                         4 Genus †Kalisuchus Thulborn, 1979
                         5 Genus †Tasmaniosaurus Camp & Banks, 1978
                         6 Genus †Xilousuchus Wu, 1981