Phylum Mollusca Linnaeus, 1758 - molluscs
   Subphylum Conchifera Gegenbauer, 1878
     Class Gastropoda Cuvier, 1795 - snails and slugs
       Subclass Orthogastropoda Ponder & Lindberg, 1995
         Superorder Caenogastropoda Cox, 1960
           Order Sorbeoconcha Ponder & Lindberg, 1997
             Suborder Discopoda Fischer, 1884
               Superfamily Campaniloidea Douvillé, 1904
                 1 Family Campanilidae Douvillé, 1904
                 2 Family Plesiotrochidae Houbrick, 1990