Ophidia Brongniart, 1800
   Serpentes see Suborder Serpentes Linnaeus, 1758
     Alethinophidia Nopcsa, 1923 see Infraorder Alethinophidia Nopcsa, 1923
       Henophidia Hoffstetter, 1939 see Parvorder Henophidia Hoffstetter, 1939
         Booidea Gray, 1825
           Family Boidae Gray, 1825 [paraphyletic?] - pythons and boas