Kingdom [Animalia] Linnaeus, 1758 - animals
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Vertebrata Cuvier, 1812 - vertebrates
       Class Reptilia Linnaeus, 1758 - reptiles
         Subclass †Euryapsida Colbert, 1945 see Subclass Diapsida Osborn, 1903
           1 Order †Araeoscelidia Williston, 1913
           2 Order †Sauropterygia Owen, 1860 see Superorder Sauropterygia Owen, 1860
           3 Order †Placodontia Owen, 1859
           4 Order †Ichthyosauria Blainville, 1835