Class Cephalopoda Cuvier, 1795 - cephalopods
   Subclass Coleoidea Bather, 1888
     Superorder Vampyropoda Boletzky, 1992 see Superorder Octopodiformes Young et al., 1998
       Order Octopoda Leach, 1817 - octopuses
         1 Family †Palaeoctopodidae Dollo, 1912
         2 Family Octopodidae Rafinesque, 1815
         3 Family Argonautidae Lamarck, 1809