Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884
       Order Venerida Gray, 1854
         Superfamily Cyamioidea Sars, 1878
           1 Family Cyamiidae Sars, 1878
           2 Family Perrierinidae Marwick, 1928 see Family Cyamiidae Sars, 1878
           3 Family Sportellidae Dall, 1899
           4 Family Neoleptonidae Thiele, 1934
           5 Family Galatheavalvidae Knudsen, 1970
           6 Family Bernardinidae Keen, 1969 see Family Neoleptonidae Thiele, 1934