Phylum [Vertebrata] (Lamarck, 1801)
Class Reptilia Linnaeus, 1758 - reptiles
Subclass Diapsida Osborn, 1903 - diapsids
see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
Superorder Lepidosauria Haeckel, 1866
see Superorder Lepidosauriformes Gauthier, Estes & de Queiroz, 1988
Order Squamata Oppel, 1811
Suborder Serpentes Linnaeus, 1758 - snakes
Family †Dolichosauridae Gervais, 1852 - dolichosaurs
Genus †Pachyrhachis Haas, 1979