[Reptilia] Linnaeus 1758 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Class Reptilia Linnaeus, 1758
   Clade Diapsida Osborn 1903 [Laurin 1991] see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
     1 Clade †Araeoscelidia Williston 1913 [Laurin 1991] see Order Araeoscelidia Williston, 1913
     2 Clade Eosuchia Broom 1914 [Laurin 1991]