Kingdom [Animalia] Linnaeus, 1758 - animals
Subkingdom Metazoa Haeckel, 1874
see Kingdom Animalia Linnaeus, 1758
Division Eumetazoa Butschli, 1910
see Subkingdom Eumetazoa Butschli, 1910
Subdivision Bilateralia
Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Class Reptilia Linnaeus, 1758 - reptiles
Subclass Lepidosauria Duméril & Bibron, 1839
Order Rhynchocephalia Günther, 1867 - tuataras
Suborder †Clarazisaurida
see Order Thalattosauria (Merriam, 1905)
Family †Tholodontidae Kuhn, 1960