Class Cephalopoda Cuvier, 1795 - cephalopods
   Subclass Coleoidea Bather, 1888
     Superorder Vampyropoda Boletzky, 1992 see Superorder Octopodiformes Young et al., 1998
       Order Vampyromorpha Grimpe, 1917 - vampire squids see Order Vampyromorphida Pickford, 1939
         Suborder †Prototeuthina Naef, 1921
           1 Family †Loligosepiidae Van Regteren Altena, 1949
           2 Family †Plesioteuthididae Naef, 1921
           3 Family †Geopeltididae Van Regteren Altena, 1949
           4 Family †Leptotheuthididae Naef, 1921
           5 Family †Lioteuthididae Naef, 1922
           6 Family †Mastigophoridae Engeser & Reitner, 1985