Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
     Class Reptilia Linnaeus, 1758 - reptiles
       1 Subclass Anapsida Osborn, 1903 - anapsids
       2 Subclass Lepidosauria Duméril & Bibron, 1839
       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