Superclass Reptilia Linnaeus, 1758 Class †Sauropterygia Owen, 1860 see Superorder Sauropterygia Owen, 1860 1 †plesiosaurs Blainville, 1835 - plesiosaurs 2 †nothosaurs Baur, 1889 - nothosaurs see Suborder Nothosauria Baur, 1889