Class Cephalopoda Cuvier, 1795 - cephalopods
   Subclass Coleoidea Bather, 1888
     Superorder †Belemnoidea Gray, 1849
       Order †Belemnitida Gray, 1849
         Suborder †Belemnopseina Jeletzky, 1965
           1 Family †Belemnopseidae Naef, 1922
           2 Family †Dicoelitidae Saks & Nalnyeva, 1967
           3 Family †Duvaliidae Pavlow, 1914
           4 Family †Belemnitellidae Pavlow, 1914
           5 Family †Dimitobelidae Whitehouse, 1924