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 Colubridae Oppel, 1811 - colubrids
           Subfamily Dipsadinae Guenther, 1858 - American snail-eating snakes
             Genus Mussurana Zaher, Grazziotin, Cadle, Murphy, de Moura-Leite & Bonatto, 2009