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
             01 Subfamily Venerinae Rafinesque, 1815
             02 Subfamily Gafrarinae Millard, 1996, orth. inval. [monotypic] see Subfamily Gafrariinae Korobkov, 1954
             03 Subfamily Circinae Dall, 1895, nom. illeg. see Subfamily Gouldiinae Stewart, 1930
             04 Subfamily Sunettinae Stoliczka, 1870
             05 Subfamily Chioninae Frizzell, 1936, nom. illeg.
             06 Subfamily Meretricinae Gray, 1847
             07 Subfamily Pitarinae Stewart, 1930 see Subfamily Callocardiinae Dall, 1895
             08 Subfamily Samarangiinae Keen, 1969 [monotypic]
             09 Subfamily Tapetinae Gray, 1851
             10 Subfamily Dosiniinae Deshayes, 1853 [monotypic]
             11 Subfamily Clementiinae Frizzell, 1936
             12 Subfamily Cyclininae Frizzell, 1936 see Subfamily Chioninae Frizzell, 1936, nom. illeg.
             13 Subfamily Gemminae Dall, 1895