Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Cephalopoda Cuvier, 1795 - cephalopods
     Subclass Coleoida Bather, 1888 see Subclass Coleoidea Bather, 1888
       Order Teuthida Naef, 1916
         Suborder Oegopsida d'Orbigny, 1845 see Suborder Oegopsina Orbigny, 1845
           Family Ommastrephidae Steenstrup, 1857
             1 Subfamily Illicinae Posselt, 1891
             2 Subfamily Todarodinae Adam, 1960
             3 Subfamily Ornithoteuthinae [monotypic] see Subfamily Ommastrephinae Steenstrup, 1857
             4 Subfamily Ommastrephinae Steenstrup, 1857