Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758
   Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
     Clade Vetigastropoda Salvini-Plawen, 1980 see Order Vetigastropoda Salvini-Plawen, 1980
       Superfamily †Murchisonioidea Koken, 1896
         1 Family †Murchisoniidae Koken, 1896
         2 Family †Cheeneetnukiidae Blodgett & Cook, 2002
         3 Family †Hormotomidae Wenz, 1938