Lepidosauria Haeckel 1866 [Gauthier, Estes & de Queiroz 1988], nom. cl. inval. see Class Lepidosauria Haeckel, 1866
Count: [*] 2o;57f;12g
   Order Squamata Oppel, 1811
  Count: [*] 57f;12g [2 Mar 2017]
     Bifurcata Vidal & Hedges, 2005
    Count: [*] 56f;12g [2 Mar 2017]
       Unidentata Vidal & Hedges, 2005
      Count: [*] 49f;12g [2 Mar 2017]
         Episquamata Vidal & Hedges, 2005
        Count: [*] 45f;12g [2 Mar 2017]
           Toxicofera Vidal & Hedges, 2005
          Count: [*] 36f;9g [2 Mar 2017]
             1 Iguania Latreille 1825 [Estes et al. 1988] see Suborder Iguania Cope, 1864
            Count: [*] 3f [28 Feb 2017]
             2 Serpentes see Suborder Serpentes Linnaeus, 1758
            Count: [*] 25f;9g [2 Mar 2017]
             3 Anguimorpha Fürbringer, 1900 see Suborder Anguimorpha Fürbringer, 1900
            Count: [*] 8f [28 Feb 2017]