reptiles Linnaeus 1758 [Laurin & Reisz 2020] see Class Reptilia Linnaeus, 1758
   1 Genus †Petrolacosaurus Lane, 1945
   2.1 Genus †Youngina Broom, 1914
   2.2.1 Genus †Acerosodontosaurus Currie, 1980
   2.2.2.1.1 Genus †Simoedosaurus Gervais, 1877
   2.2.2.1.2 Genus †Cteniogenys Gilmore, 1928
   2.2.2.2 Lepidosauro. Benton 1983 [Benton 1985] see Subclass Lepidosauromorpha Benton, 1983
   2.2.2.3 Pan-Archosauria Gauthier 2020