Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
Count: 1g; †5f;20g;4s
   Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
  Count: 1g; †5f;20g;4s
     Reptilia Linnaeus 1758 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Class Reptilia Linnaeus, 1758
    Count: 1g
       1 Chelonia Brongniart 1800 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Class Chelonia Brongniart, 1800
      Count: -
       2 Sauria McCartney 1802 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Clade Sauria Macartney 1802 [Gauthier & de Queiroz 2020]
      Count: 1g