Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Superclass Reptilia Linnaeus, 1758 1 Class Eusauropsida 2 Class †Ichthyopterygia Blainville, 1835 see Subclass Ichthyopterygia Blainville, 1835 3 Class †Sauropterygia Owen, 1860 see Superorder Sauropterygia Owen, 1860 4 Class †Eotheropsida