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
       1 Chelonia Brongniart 1800 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Class Chelonia Brongniart, 1800
       2 Sauria McCartney 1802 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Clade Sauria Macartney 1802 [Gauthier & de Queiroz 2020]