Ophidia Brongniart, 1800
   Serpentes see Suborder Serpentes Linnaeus, 1758
     Alethinophidia Nopcsa, 1923 see Infraorder Alethinophidia Nopcsa, 1923
       Caenophidia Hoffstetter, 1939
         Acrochordoidea Bonaparte, 1831
           1 Family †Palaeophiidae Lydekker, 1888
           2 Family †Nigerophiidae Rage, 1975
           3 Family Acrochordidae Bonaparte, 1831 [monotypic] - wart snakes