Class [Reptilia] Linnaeus, 1758 - reptiles Subclass Lepidosauria Duméril & Bibron, 1839 see Superorder Lepidosauria Haeckel, 1866 Order Rhynchocephalia Günther, 1867 - tuataras see Order Sphenodontida Carroll, 1985 Suborder Sphenodontoidea Lydekker, 1888 Family Sphenodontidae Cope, 1869 - tuataras Subfamily †Homoeosaurinae Gervais, 1859 Genus †Leptosaurus Fitzinger, 1843