Phylum [Vertebrata] Lamarck, 1801 see Infraphylum Vertebrata Lamarck, 1801 Class Reptilia Linnaeus, 1758 - reptiles Subclass †uncertain Order †Plesiosauria Blainville, 1835 - plesiosaurs Family †Pliosauridae Seeley, 1874 Genus †Kronosaurus Longman, 1924