Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Cephalopoda Cuvier, 1795 - cephalopods
     Subclass Coleoida Bather, 1888 see Subclass Coleoidea Bather, 1888
       Order Sepiida Gray, 1849
         Suborder Sepiina Gray, 1849
           Superfamily Sepioidea
             1 Family Sepiidae Lamarck, 1809
             2 Family Belopteridae Owen, 1856 [monotypic]
             3 Family Belosaepiidae Nyst, 1843
             4 Family Vasseuriidae Naef, 1921 [monotypic]
             5 Family Belosepiellidae Naef, 1921 [monotypic]
             6 Family Sepiolidae Leach, 1817
             7 Family Sepiadariidae Fischer, 1882
             8 Family Idiosepiidae Appellöf, 1898 [monotypic]