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
             Family Sepiidae Lamarck, 1809
               01 Genus Sepia Linnaeus, 1758
               02 Genus Acanthosepion Rochebrune, 1884 see Subgenus Acanthosepion Rochebrune, 1884
               03 Genus Ascarosepion Rochebrune, 1884 see Genus Sepia Linnaeus, 1758
               04 Genus Crumenasepia Iredale, 1926 see Genus Sepia Linnaeus, 1758
               05 Genus Decorisepia Iredale, 1926 see Genus Sepia Linnaeus, 1758
               06 Genus Doratosepion Rochebrune, 1884 see Subgenus Doratosepion Rochebrune, 1884
               07 Genus Glyptosepia Iredale, 1926 see Genus Sepia Linnaeus, 1758
               08 Genus Lophosepion Rochebrune, 1884 see Genus Sepia Linnaeus, 1758
               09 Genus Mesembrisepia Iredale, 1926 see Genus Sepia Linnaeus, 1758
               10 Genus Ponderisepia Iredale, 1926 see Genus Sepia Linnaeus, 1758
               11 Genus Platysepia Naef, 1923 see Genus Sepia Linnaeus, 1758
               12 Genus Pseudosepia Naef, 1923
               13 Genus Rhombosepion Rochebrune, 1884 see Subgenus Rhombosepion Rochebrune, 1884
               14 Genus Sepiella Gray, 1849
               15 ?Genus Solitosepia Iredale, 1926 see Genus Sepia Linnaeus, 1758
               16 Genus Spathidosepion Rochebrune, 1884 see Genus Sepia Linnaeus, 1758
               17 Genus Tenuisepia Cotton, 1932 see Genus Sepia Linnaeus, 1758