Squamata Oppel 1811 [Gauthier, Estes & de Queiroz 1988], nom. cl. inval. see Order Squamata Oppel, 1811
   Episquamata Vidal & Hedges, 2005
     Toxicofera Vidal & Hedges, 2005
       Anguimorpha Fürbringer, 1900 see Suborder Anguimorpha Fürbringer, 1900
         Family Anguidae Gray, 1825 - glass lizards and alligator lizards
           Subfamily Gerrhonotinae (Cope, 1864)
             1 Genus Abronia Gray, 1838
             2 Genus Barisia Gray, 1838
             3 Genus Coloptychon Tihen, 1949
             4 Genus Elgaria Gray, 1838
             5 Genus Gerrhonotus Wiegmann, 1828
             6 Genus Mesaspis Cope, 1877