Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
Count: 410f; †195f
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
  Count: [f†f] 410f; †172f
     Clade Neritimorpha Koken, 1896 see Order Neritimorpha Golikov & Starobogatov, 1975
    Count: [f†f] 9f; †17f
       Clade Cycloneritimorpha Frýda, 1998
      Count: [f†f] 9f; †8f
         Superfamily Neritopsoidea Gray, 1847
        Count: [f†f] 2f; †4f
           Family †Delphinulopsidae Blodgett, Frýda & Stanley, 2001
          Count: -