Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Superorder Archaeogastropoda Thiele, 1925
         Order Cocculiniformia Hazsprunar, 1987 see Superorder Cocculiniformia Haszprunar, 1987
           Superfamily Lepetelloidea Dall, 1882
             1 Family Lepetellidae Dall, 1882
             2 Family Pseudococculinidae Hickman, 1983
             3 Family Pyropeltidae McLean & Haszprunar, 1987 [monotypic]
             4 Family Osteopeltidae Marshall, 1987 [monotypic]
             5 Family Addisoniidae Dall, 1882 [monotypic]
             6 Family Choristellidae Ph. Bouchet & A. Warén, 1979 [monotypic] see Subfamily Choristellinae Bouchet & Warén, 1979
             7 Family Bathyphytophilidae Moskalev, 1978