Kingdom [Animalia] Linnaeus, 1758 - animals
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Vertebrata Cuvier, 1812 - vertebrates
       Class Reptilia Linnaeus, 1758 - reptiles
         1 Subclass Anapsida Osborn, 1903 - anapsids
         2 Subclass Lepidosauria Duméril & Bibron, 1839 see Superorder Lepidosauria Haeckel, 1866
         3 Subclass Archosauria Cope, 1869 see Division Archosauria Cope, 1869
         4 Subclass †Euryapsida Colbert, 1945 see Subclass Diapsida Osborn, 1903
         5 Subclass †Synapsida Osborn, 1903 - synapsids see Class Synapsida Osborn, 1903