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 Crocodylia Wagler, 1830 - crocodiles
               Parasuborder †Protosuchia Mook, 1934 [paraphyletic] see Order Protosuchia Brown, 1934
                 Family †Protosuchidae Brown, 1934
                   01 Genus †Baroqueosuchus Busbey & Gow, 1984 see Genus Protosuchus Brown, 1934
                   02 Genus †Clarencea Brink, 1959
                   03 Genus †Dianosuchus Young, 1982
                   04 Genus †Eopneumatosuchus Crompton & Smith, 1980
                   05 Genus †Erythrochampsa Haughton, 1924, nom. dub.
                   06 Genus †Lesothosuchus Whetstone & Whybrow, 1983
                   07 Genus †Microchampsa Young, 1951, nom. dub.
                   08 Genus †Notochampsa Broom, 1904
                   09 Genus †Orthosuchus Nash, 1968
                   10 Genus †Protosuchus Brown, 1934
                   11 Genus †Stegomosuchus von Huene, 1922