Class Cephalopoda Cuvier, 1795 - cephalopods
   Subclass Coleoidea Bather, 1888
     Superorder †Belemnoidea Gray, 1849
       Order †Aulacocerida Stolley, 1919
         1 Family †Aulacoceratidae Mojsisovics, 1882
         2 Family †Dictyoconitidae Gustomesov, 1978
         3 Family †Palaeobelemnopseidae Chen, 1982
         4 Family †Xiphoteuthididae Bather, in Blake, 1892
         5 Family †Hematitidae Gustomesov, 1976
         6 Genus †Jeletzkya Johnson & Richardson, 1968, incertae sedis