Vertebrata Cuvier, 1812 - vertebrates
Status: extant
   Gnathostomata
  Status: extant
     Teleostomi
    Status: extant
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
      Status: extant
         Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
        Status: extant
           Class Reptilia Linnaeus, 1758 [paraphyletic] - reptiles
          Status: extant
             Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
            Status: extant
               Infraclass Archosauromorpha Huene, 1946 see Clade Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval.
              Status: extant
                 Superorder Archosauria Cope, 1869 - archosaurs see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
                Status: extant
                   Order †Thecodontia Owen, 1859 see Division Archosauria Cope, 1869
                  Status: fossil
                     01 Suborder †Proterosuchia Broom, 1906 see Order Proterosuchia Broom, 1906
                    Status: fossil
                     02 Suborder †Ornithosuchia (Huene, 1908)
                    Status: fossil
                     03 Suborder †Rauisuchia Bonaparte, 1982 - rauisuchians see [unranked] Rauisuchia Bonaparte, 1982
                    Status: fossil
                     04 Suborder †Aetosauria Nicholson & Lydekker, 1889 [monotypic] see Order Aetosauria Nicholson & Lydekker, 1889
                    Status: fossil
                     05 Family †Erpetosuchidae Watson, 1917
                    Status: fossil
                     06 Family †Ctenosauriscidae Kuhn, 1964
                    Status: fossil
                     07 Family †Gracilisuchidae Butler et al., 2014
                    Status: fossil
                     08 Family †Scleromochlidae Huene, 1914 [monotypic]
                    Status: fossil
                     09 Genus †Megalancosaurus Calzavara et al., 1981
                    Status: fossil
                     10 Suborder †Phytosauria Jaeger, 1828 [monotypic] see Order Phytosauria Jaeger, 1828
                    Status: fossil
                     11 Genus †Clarencea Brink, 1959, incertae sedis
                    Status: fossil
                     12 Genus †Dongusia Huene, 1940, nom. dub., incertae sedis
                    Status: fossil
                     13 ?Genus †Doswellia Weems, 1980
                    Status: fossil
                     14 Genus †Fenhosuchus Young, 1964, incertae sedis
                    Status: fossil
                     15 Genus †Heleosaurus Broom, 1907, incertae sedis
                    Status: fossil
                     16 ?Genus †Megalancosaurus Calzavara et al., 1981
                    Status: fossil
                     17 ?Genus †Microchampsa Young, 1951, nom. dub.
                    Status: fossil
                     18 Genus †"Pallisteria" Charig, 1967, nom. nud., incertae sedis
                    Status: fossil
                     19 Genus †"Teleocrater" Charig, 1956, nom. nud., incertae sedis see Genus Teleocrater Nesbitt, Butler, Ezcurra, Barrett, Stocker, Angielczyk, Smith, Sidor, Niedzwiedzki, Sennikov & Charig, 2017
                    Status: fossil
                     20 Genus †Strigosuchus Simmons, 1965, nom. dub., incertae sedis
                    Status: fossil