Lepidosauria Haeckel 1866 [Gauthier, Estes & de Queiroz 1988], nom. cl. inval. see Class Lepidosauria Haeckel, 1866
   Order Squamata Oppel, 1811
     Bifurcata Vidal & Hedges, 2005
       Unidentata Vidal & Hedges, 2005
         Episquamata Vidal & Hedges, 2005
           Toxicofera Vidal & Hedges, 2005
             1 Iguania Latreille 1825 [Estes et al. 1988] see Suborder Iguania Cope, 1864
             2 Serpentes see Suborder Serpentes Linnaeus, 1758
             3 Anguimorpha Fürbringer, 1900 see Suborder Anguimorpha Fürbringer, 1900