1. Subfamily Carditamerinae Chavan, 1969
   1. Genus Carditamera Conrad, 1838
   2. Genus Centrocardita Sacco, 1899
   3. Genus Glans Megerle von Mühlfeld, 1811
   4. Genus Byssomera Olsson, 1961 accepted as Carditamera Conrad, 1838 (synonym)
   5. Genus Lazaria Gray, 1854 accepted as Carditamera Conrad, 1838 (synonym)
2. Genus Carditella E. A. Smith, 1881
3. Subfamily Carditinae A. Férussac, 1822
   1. Genus Beguina Röding, 1798
   2. Genus Cardita Bruguière, 1792
   3. Genus Azarella Gray, 1854 accepted as Beguina Röding, 1798 (synonym)
   4. Genus Jesonia Gray, 1847 accepted as Cardita Bruguière, 1792 (synonym)
   5. Genus Mytilicardia Herrmannsen, 1847 accepted as Cardita Bruguière, 1792 (synonym)
   6. Genus Mytilicardita Anton, 1838 accepted as Cardita Bruguière, 1792 (synonym)
4. Subfamily Cuninae Chavan, 1969
   1. Genus Condylocuna Laseron, 1953
   2. Genus Crassacuna Middelfart, 2002
   3. Genus Cuna Hedley, 1902
   4. Genus Cunanax Iredale, 1936
   5. Genus Goniocuna Klappenbach, 1963
   6. Genus Mimicuna Middelfart, 2002
   7. Genus Ovacuna Laseron, 1953
   8. Genus Propecuna Cotton, 1931
   9. Genus Saltocuna Iredale, 1936
   10. Genus Warrana Laseron, 1953
   11. Genus Westaustrocuna Middelfart, 2002
   12. Genus Americuna Klappenbach, 1963 accepted as Warrana Laseron, 1953 (unaccepted > junior subjective synonym, synonym)
   13. Genus Mesocuna Laseron, 1953 accepted as Cuna Hedley, 1902 (synonym)
   14. Genus Particondyla Laseron, 1953 accepted as Cuna Hedley, 1902 (synonym)
5. Genus Hamacuna Cotton, 1931
6. Subfamily Miodomeridinae Chavan, 1969
   1. Genus Miodontiscus Dall, 1903
   2. Genus Pleuromeris Conrad, 1867
   3. Genus Pteromeris Conrad, 1862
   4. Genus Miodon P. P. Carpenter, 1864 accepted as Miodontiscus Dall, 1903 (invalid: junior homonym of Miodon Duméril, 1859 [Reptilia]; Miodontiscus is a replacement name)
7. Subfamily Scalaricarditinae D. E. Pérez, 2019
   1. Genus Akardita La Perna, Brunetti & Della Bella, 2018
   2. Genus Coanicardita D. E. Pérez & Giachetti, 2020
   3. Genus Coripia De Gregorio, 1885
   4. Genus Cyclocardia Conrad, 1867
   5. Genus Hippocampocardia D. E. Pérez & Giachetti, 2020
   6. Genus Vimentum Iredale, 1925
   7. Genus Crassicardia Savitsky, 1979 accepted as Cyclocardia (Crassicardia) Savitsky, 1979 represented as Cyclocardia Conrad, 1867 (unaccepted > superseded rank)
8. Subfamily Thecaliinae Dall, 1903
   1. Genus Milneria Dall, 1881
   2. Genus Powellina M. Huber, 2010
   3. Genus Thecalia H. Adams & A. Adams, 1857
   4. Genus Ceropsis Dall, 1871 accepted as Milneria Dall, 1881 (invalid: junior homonym of Ceropsis Gay & Solier, 1839 [Coleoptera]; Milneria is a replacement name)
9. Subfamily Venericardiinae Chavan, 1969
   1. Genus Arcturellina Chavan, 1951
   2. Genus Bathycardita Iredale, 1924
   3. Genus Cardiocardita Anton, 1838
   4. Genus Cardites Link, 1807
   5. Genus Lazariella Sacco, 1899
   6. Genus Megacardita Sacco, 1899
   7. Genus Purpurocardia P. A. Maxwell, 1969
   8. Genus Strophocardia Olsson, 1961
   9. Genus Venericardia Lamarck, 1801
   10. Genus Actinobolus Mörch, 1853 accepted as Cardites Link, 1807 (invalid: junior homonym of Actinobolus Westwood, 1842 [Coleoptera])
   11. Genus Agaria J. E. Gray, 1847 accepted as Cardiocardita Anton, 1838 (unaccepted > junior objective synonym)
   12. Genus Arcturella Chavan, 1941 accepted as Arcturellina Chavan, 1951 (invalid: junior homonym of Arcturella Sars, 1897 [Crustacea]; Arcturellina is a replacement name)
   13. Genus Venericardita Habe, 1958 accepted as Venericardia Lamarck, 1801 (incorrect subsequent spelling)
10. Subfamily Carditellinae Kuroda, Habe & Oyama, 1971 accepted as Condylocardiinae F. Bernard, 1896 accepted as Condylocardiidae F. Bernard, 1896
11. Subfamily Carditesinae Chavan, 1969 accepted as Venericardiinae Chavan, 1969 (unaccepted > junior subjective synonym)
12. Subfamily Condylocardiinae F. Bernard, 1896 accepted as Condylocardiidae F. Bernard, 1896 (unaccepted > superseded rank)

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