Class Cephalopoda Cuvier, 1795 - cephalopods
Count: 6o;6f;1g; †6o;40f;4g
   Subclass Coleoidea Bather, 1888
  Count: [o†o] 6o;6f;1g; †6o;40f;4g
     Superorder Vampyropoda Boletzky, 1992 see Superorder Octopodiformes Young et al., 1998
    Count: [o] 3o;3f;1g; †10f;2g
       Order Vampyromorpha Grimpe, 1917 - vampire squids see Order Vampyromorphida Pickford, 1939
      Count: [f†f] 1f;1g; †9f;1g
         Suborder †Mesoteuthina Naef, 1921
        Count: [†f] †2f
           1 Family †Palaeololiginidae Naef, 1921
          Count: -
           2 Family †Trachyteuthididae Naef, 1921
          Count: -