Squamata Oppel 1811 [Gauthier, Estes & de Queiroz 1988], nom. cl. inval. see Order Squamata Oppel, 1811
   Episquamata Vidal & Hedges, 2005
     Toxicofera Vidal & Hedges, 2005
       1.1 Anguimorpha Fürbringer, 1900 see Suborder Anguimorpha Fürbringer, 1900
       1.2 Iguania Latreille 1825 [Estes et al. 1988] see Suborder Iguania Cope, 1864
       2 Serpentes see Suborder Serpentes Linnaeus, 1758