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 †Belemnoidea Gray, 1849
    Count: [†f] †5o;21f;1g
       Order †Aulacocerida Stolley, 1919
      Count: [†f] †5f;1g
         Family †Hematitidae Gustomesov, 1976
        Count: -