1. Genus Ainicardita Popov, 1983 †
2. Subfamily Carditamerinae Chavan, 1969
   1. Genus Carditamera Conrad, 1838
   2. Genus Centrocardita Sacco, 1899
   3. Genus Choniocardia Cossmann, 1904 †
   4. Genus Glans Megerle von Mühlfeld, 1811
   5. Genus Byssomera Olsson, 1961 accepted as Carditamera Conrad, 1838 (synonym)
   6. Genus Lazaria Gray, 1854 accepted as Carditamera Conrad, 1838 (synonym)
3. Genus Carditella E. A. Smith, 1881
4. Subfamily Carditinae A. Férussac, 1822
   1. Genus Beguina Röding, 1798
   2. Genus Birkelundita Heinberg, 1993 †
   3. Genus Cardita Bruguière, 1792
   4. Genus Goossensia Cossmann, 1885 †
   5. Genus Azarella Gray, 1854 accepted as Beguina Röding, 1798 (synonym)
   6. Genus Jesonia Gray, 1847 accepted as Cardita Bruguière, 1792 (synonym)
   7. Genus Mytilicardia Herrmannsen, 1847 accepted as Cardita Bruguière, 1792 (synonym)
   8. Genus Mytilicardita Anton, 1838 accepted as Cardita Bruguière, 1792 (synonym)
5. 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)
   15. Genus Volupicuna Iredale, 1936 accepted as Cuna Hedley, 1902 (synonym)
6. Genus Fenestricardita R. Casey, 1961 †
7. Genus Hamacuna Cotton, 1931
8. Subfamily Miodomeridinae Chavan, 1969
   1. Genus Kolmeris D. E. Pérez & del Río, 2017 †
   2. Genus Miodomeris Chavan, 1938 †
   3. Genus Miodontiscus Dall, 1903
   4. Genus Pleuromeris Conrad, 1867
   5. Genus Pteromeris Conrad, 1862
   6. Genus Miodon P. P. Carpenter, 1864 accepted as Miodontiscus Dall, 1903 (invalid: junior homonym of Miodon Duméril, 1859 [Reptilia]; Miodontiscus is a replacement name)
9. Subfamily Palaeocarditinae Chavan, 1969 †
   1. Genus Palaeocardita Conrad, 1867 †
   2. Genus Schizocardita Körner, 1937 †
10. 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 Malarossia Berezovsky, 1999 †
    7. Genus Oesterheldia D. E. Pérez & Giachetti, 2020 †
    8. Genus Scalaricardita Sacco, 1899 †
    9. Genus Vimentum Iredale, 1925
    10. Genus Crassicardia Savitsky, 1979 accepted as Cyclocardia (Crassicardia) Savitsky, 1979 represented as Cyclocardia Conrad, 1867 (unaccepted > superseded rank)
11. 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)
12. Genus Trapezicardita R. Casey, 1961 †
13. Genus Tutcheria L. R. Cox, 1946 †
14. 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 Claibornicardia Stenzel & E. K. Krause, 1957 †
    6. Genus Darwinicardia D. E. Pérez & del Río, 2017 †
    7. Genus Fasciculicardia P. A. Maxwell, 1969 †
    8. Genus Glyptoactis R. B. Stewart, 1930 †
    9. Genus Kalelia D. E. Pérez & del Río, 2017 †
    10. Genus Lazariella Sacco, 1899
    11. Genus Leuroactis R. B. Stewart, 1930 †
    12. Genus Megacardita Sacco, 1899
    13. Genus Neovenericor Rossi de García & Levy, 1980 †
    14. Genus Pacificor Verastegui, 1953 †
    15. Genus Paraglans Chavan, 1941 †
    16. Genus Purpurocardia P. A. Maxwell, 1969
    17. Genus Rotundicardia Heaslip, 1968 †
    18. Genus Strophocardia Olsson, 1961
    19. Genus Venericardia Lamarck, 1801 †
    20. Genus Venericor R. B. Stewart, 1930 †
    21. Genus Actinobolus Mörch, 1853 accepted as Cardites Link, 1807 (invalid: junior homonym of Actinobolus Westwood, 1842 [Coleoptera])
    22. Genus Acturellina Chavan, 1951 † accepted as Arcturellina Chavan, 1951 (unaccepted > misspelling - incorrect original spelling)
    23. Genus Agaria J. E. Gray, 1847 accepted as Cardiocardita Anton, 1838 (unaccepted > junior subjective synonym)
    24. Genus Arcturella Chavan, 1941 accepted as Arcturellina Chavan, 1951 (invalid: junior homonym of Arcturella Sars, 1897 [Crustacea]; Arcturellina is a replacement name)
    25. Genus Lunulicardita Popov, 1983 † accepted as Strophocardia Olsson, 1961
    26. Genus Venericardita Habe, 1958 accepted as Venericardia Lamarck, 1801 † (incorrect subsequent spelling)
    27. Genus Venericardium [sic] † accepted as Venericardia Lamarck, 1801 † (unaccepted > misspelling - incorrect subsequent spelling)
15. Subfamily Carditellinae Kuroda, Habe & Oyama, 1971 accepted as Condylocardiinae F. Bernard, 1896 accepted as Condylocardiidae F. Bernard, 1896
16. Subfamily Carditesinae Chavan, 1969 accepted as Venericardiinae Chavan, 1969 (unaccepted > junior subjective synonym)
17. Genus Chavanella Jaworski, 1939 † accepted as Miodomeris Chavan, 1938 † (unaccepted > junior subjective synonym)
18. Subfamily Condylocardiinae F. Bernard, 1896 accepted as Condylocardiidae F. Bernard, 1896 (unaccepted > superseded rank)
    1. Genus Micromeris Conrad, 1866
    2. Genus Hippella Mörch, 1861 accepted as Condylocardia F. Bernard, 1896 (invalid: placed on Official Index by ICZN Opinion 872)
    3. Genus Radiocondyla Iredale, 1936 accepted as Condylocardia F. Bernard, 1896 (synonym)
19. Genus Eomiodon Chavan, 1936 † accepted as Miodomeris Chavan, 1938 † (unaccepted > junior subjective synonym)

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