Class [Reptilia] Linnaeus, 1758 - reptiles Subclass Lepidosauria Duméril & Bibron, 1839 Order Rhynchocephalia Günther, 1867 - tuataras Suborder Sphenodontoidea Lydekker, 1888 Family Sphenodontidae Cope, 1871 - tuataras Subfamily †Brachyrhinodontinae Huene, 1948 [monotypic] 1 Genus †Brachyrhinodon Huene, 1910