Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
     Class Reptilia Linnaeus, 1758 - reptiles
       Subclass Lepidosauria Duméril & Bibron, 1839
         1 Order †Eosuchia Broom, 1914 see Clade Eosuchia Broom 1914 [Laurin 1991]
         2 Order Rhynchocephalia Günther, 1867 - tuataras
         3 Order Squamata Oppel, 1811