Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960
         Suborder Heteropoda Lamarck, 1812
           Superfamily Carinarioidea H.M.D. de Blainville, 1818 see Superfamily Pterotracheoidea Rafinesque, 1814
             1 Family Atlantidae Rang, 1829
             2 Family Carinariidae Blainville, 1818
             3 Family Firolidae Rang, 1829 see Family Pterotracheidae Rafinesque, 1814