Class Reptilia Linnaeus, 1758 - reptiles Subclass †Euryapsida Colbert, 1945 see Subclass Diapsida Osborn, 1903 Order †Sauropterygia Owen, 1860 see Superorder Sauropterygia Owen, 1860 Suborder †Nothosauria Baur, 1889 Family †Nothosauridae Baur, 1889