Phylum [Vertebrata] Lamarck, 1801 see Infraphylum Vertebrata Lamarck, 1801 Class Reptilia Linnaeus, 1758 - reptiles Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020] Order †Araeoscelida see Order Araeoscelidia Williston, 1913 Family †Araeoscelididae Genus †Araeoscelis Williston, 1910