Squamata Oppel 1811 [Gauthier, Estes & de Queiroz 1988], nom. cl. inval. see Order Squamata Oppel, 1811
   Episquamata Vidal & Hedges, 2005
     Toxicofera Vidal & Hedges, 2005
       Serpentes see Suborder Serpentes Linnaeus, 1758
         Family Xenodermatidae Gray, 1849 see Family Xenodermidae Gray, 1849
           1 Genus Achalinus Peters, 1869
           2 Genus Fimbrios Smith, 1921
           3 Genus Stoliczkia Jerdon, 1870
           4 Genus Xenodermus Reinhardt, 1836
           5 Genus Xylophis Beddome, 1878