Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Bivalvia Linnaeus, 1758 - bivalves
     Subclass Heterodonta Neumayr, 1884 see Clade Heterodonta Neumayr, 1884
       Order Chamida see Order Venerida Gray, 1854
         Superfamily Veneroidea Rafinesque, 1815
           Family Veneridae Rafinesque, 1815 - venus clams
             Subfamily Cyclininae Frizzell, 1936 see Subfamily Chioninae Frizzell, 1936, nom. illeg.
               1 Genus Cyclina Deshayes, 1850
               2 Genus Cyclinella Dall, 1902
               3 Genus Cyclinorbis Makiyama, 1926
               4 Genus Cyprimeria Conrad, 1864
               5 Genus Frigichione Fletcher, 1938
               6 Genus Paleomarcia Fletcher, 1938