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 Xenophidiidae Wallach & Günther, 1998 [monotypic] 1 Genus Xenophidion Günther & Manthey, 1995