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 Crocodylia Wagler, 1830 - crocodiles
                     Suborder †Mesosuchia Huxley, 1875
                       01 Family †Teleosauridae Geoffroy, 1831
                       02 Family †Metriorhynchidae Fitzinger, 1843
                       03 Family †Pholidosauridae Eastman, 1902
                       04 Family †Atoposauridae Gervais, 1871
                       05 Family †Goniopholididae Cope, 1875
                       06 Family †Dyrosauridae de Stefano, 1903
                       07 Family †Paralligatoridae Konjukova, 1954
                       08 Family †Hsisosuchidae Young & Chow, 1953
                       09 Family †Bernissartiidae Dollo, 1883 [monotypic]
                       10 Family †Trematochampsidae Buffetaut, 1974
                       11 Family †Libycosuchidae (Stromer, 1914) [monotypic]
                       12 Family †Notosuchidae Dollo, 1924 [monotypic]
                       13 Family †Uruguaysuchidae Gasparini, 1971
                       14 Family †Baurusuchidae Price, 1945
                       15 Family †Sebecidae Simpson, 1937
                       16 ?Family †Gobiosuchidae Osmólska, 1972 [monotypic]
                       17 ?Family †Edentosuchidae Young, 1973 [monotypic]