[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]
     Clade Eosuchia Broom 1914 [Laurin 1991]
       Clade Neodiapsida Benton 1985 [within unnamed taxon]
         [crown] Clade Sauria McCartney 1802 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Clade Sauria Macartney 1802 [Gauthier & de Queiroz 2020]
           Clade Lepidosauromorpha Benton 1983 [Benton 1985] see Subclass Lepidosauromorpha Benton, 1983
             1 Genus †Planocephalosaurus Fraser, 1982
             2 Clade Squamata Oppel 1811 [Gauthier, Estes & de Queiroz 1988], nom. cl. inval. see Order Squamata Oppel, 1811