Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Class Reptilia Linnaeus, 1758 - reptiles Subclass Archosauria Cope, 1869 see Division Archosauria Cope, 1869 Order †Thecodontia Owen, 1859 see Division Archosauria Cope, 1869