[Tetrapoda] Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
   Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
     Reptilia Linnaeus 1758 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Class Reptilia Linnaeus, 1758
       Eureptilia Olson, 1947
         Romeriida Gauthier, Kluge & Rowe, 1988
           Diapsida Osborn 1903 [Laurin 1991] see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
             Eosuchia Broom 1914 [Laurin 1991]
               Neodiapsida Benton 1985
                 Sauria McCartney 1802 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Clade Sauria Macartney 1802 [Gauthier & de Queiroz 2020]
                   1.1.1 †Choristodera Cope 1876 [Dilkes 1998] see Order Choristodera Cope, 1876
                   1.1.2 †Prolacertiformes see Order Prolacertiformes Camp, 1945
                   1.2.1 Genus †[Trilophosaurus] Case, 1928
                   1.2.2 †Rhynchosauria Osborn 1903 [Dilkes 1998] see Order Rhynchosauria Osborn, 1903
                   2.1 Family †Kuehneosauridae Romer, 1966
                   2.2.1 †Sauropterygia Owen, 1860
                   2.2.2.1.1 Testudines Wagler, 1830 see Order Testudines Wagler, 1830
                   2.2.2.1.2 Lepidosauria Haeckel 1866 [Gauthier, Estes & de Queiroz 1988], nom. cl. inval. see Class Lepidosauria Haeckel, 1866
                   2.2.2.2 Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval. see Clade Archosauria Cope 1869 [Gauthier & Padian 2020]