Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
     Clade Neritimorpha Koken, 1896 see Order Neritimorpha Golikov & Starobogatov, 1975
       Clade Cycloneritimorpha Frýda, 1998
         1 Superfamily Helicinoidea Férussac, 1822
         2 Superfamily Hydrocenoidea Troschel, 1857
         3 Superfamily Neritoidea Rafinesque, 1815
         4 Superfamily Neritopsoidea Gray, 1847
         5 Superfamily †Symmetrocapuloidea Wenz, 1938