1. Genus Acar J. E. Gray, 1857
2. Genus Ambrogia Malatesta, 1974 †
3. Genus Anadara J. E. Gray, 1847
4. Genus Arca Linnaeus, 1758
5. Genus Asperarca Sacco, 1898
6. Genus Austrocucullaea Zinsmeister, 1988 †
7. Genus Barbatia J. E. Gray, 1842
8. Genus Bathyarca Kobelt, 1891
9. Genus Bentharca A. E. Verrill & K. J. Bush, 1898
10. Genus Calloarca J. E. Gray, 1857
11. Genus Cucullaearca Conrad, 1865
12. Genus Deltaodon Barnard, 1962
13. Genus Destacar Iredale, 1936
14. Genus Fugleria Reinhart, 1937
15. Genus Hawaiarca Dall, Bartsch & Rehder, 1938
16. Genus Indarca Borkar, Kulkarni & Bhattacharjee-Kapoor, 2014 †
17. Genus Indogrammatodon L. R. Cox, 1937 †
18. Genus Lamarcka Vermeij & Amano, 2021
19. Genus Larkinia Reinhart, 1935
20. Genus Litharca Gray, 1842
21. Genus Lunarca J. E. Gray, 1842
22. Genus Mabellarca Iredale, 1939
23. Genus Mesocibota Iredale, 1939
24. Genus Mimarcaria Iredale, 1939
25. Genus Miratacar Iredale, 1939
26. Genus Mosambicarca Lutaenko, 1994
27. Genus Paranadara Francisco, J. Barros & S. Lima, 2012
28. Genus Pugilarca Marwick, 1928 †
29. Genus Rostarca Glibert & van de Poel, 1965 †
30. Genus Samacar Iredale, 1936
31. Genus Scaphula W. H. Benson, 1834
32. Genus Senilia Gray, 1842
33. Genus Tegillarca Iredale, 1939
34. Genus Tetrarca F. Nordsieck, 1969
35. Genus Trisidos Röding, 1798
36. Genus Xenophorarca M. Huber, 2010
37. Genus Abarbatia Dall, Bartsch & Rehder, 1938 accepted as Barbatia J. E. Gray, 1842 (unaccepted > junior subjective synonym)
38. Genus Anomalocardia Mörch, 1853 accepted as Tegillarca Iredale, 1939 (Invalid: junior homonym of Anomalocardia Schumacher, 1817)
39. Genus Argina J. E. Gray, 1842 accepted as Lunarca J. E. Gray, 1842 (Invalid: junior homonym of Argina Hübner, 1816 [Lepidoptera]; Arginarca is a replacement name)
40. Genus Arginarca R. A. McLean, 1951 accepted as Lunarca J. E. Gray, 1842 (synonym)
41. Genus Byssoarca Swainson, 1833 accepted as Arca Linnaeus, 1758 (unaccepted > junior objective synonym)
42. Genus Caloosarca Olsson, 1961 accepted as Anadara J. E. Gray, 1847 (synonym)
43. Genus Cara J. E. Gray, 1857 accepted as Anadara J. E. Gray, 1847 (unaccepted > junior subjective synonym)
44. Genus Cibota Mörch, 1853 accepted as Arca Linnaeus, 1758 (Invalid: junior objective synonym of Arca)
45. Genus Coraliarca Habe & Okutani, 1968 accepted as Calloarca J. E. Gray, 1857 (junior subjective synonym)
46. Genus Cunearca Dall, 1898 accepted as Anadara (Cunearca) Dall, 1898 represented as Anadara J. E. Gray, 1847 (unaccepted > superseded rank)
47. Genus Diluvarca Woodring, 1925 accepted as Anadara (Diluvarca) Woodring, 1925 † accepted as Anadara J. E. Gray, 1847
48. Genus Eonavicula Arkell, 1929 † accepted as Arca (Eonavicula) Arkell, 1929 † represented as Arca Linnaeus, 1758 (unaccepted > superseded rank)
49. Genus Epitrisis Iredale, 1939 accepted as Trisidos Röding, 1798 (synonym)
50. Genus Esmerarca Olsson, 1961 accepted as Anadara J. E. Gray, 1847 (synonym)
51. Genus Grandiarca Olsson, 1961 accepted as Larkinia Reinhart, 1935 (synonym)
52. Genus Granoarca Conrad, 1862 † accepted as Barbatia J. E. Gray, 1842 (unaccepted > junior subjective synonym)
53. Genus Imparilarca Iredale, 1929 accepted as Anadara (Imparilarca) Iredale, 1929 represented as Anadara J. E. Gray, 1847
54. Genus Indacar Iredale, 1939 accepted as Bentharca A. E. Verrill & K. J. Bush, 1898 (unaccepted > junior subjective synonym)
55. Genus Kikaiarca H. Noda, 1966 † accepted as Anadara (Imparilarca) Iredale, 1929 represented as Anadara J. E. Gray, 1847 (unaccepted > junior subjective synonym)
56. Genus Microcucullaea Iredale, 1929 accepted as Bathyarca Kobelt, 1891 (unaccepted > junior subjective synonym)
57. Genus Notogrammatodon P. A. Maxwell, 1966 † accepted as Bentharca A. E. Verrill & K. J. Bush, 1898 (unaccepted > junior subjective synonym)
58. Genus Okinawanoarca H. Noda, 1980 † accepted as Bentharca A. E. Verrill & K. J. Bush, 1898 (unaccepted > junior subjective synonym)
59. Genus Opularca Iredale, 1939 accepted as Calloarca J. E. Gray, 1857 (synonym)
60. Genus Paragrammatodon Nomura & Niino, 1940 accepted as Samacar Iredale, 1936 (synonym)
61. Genus Parallelepipedum Mörch, 1850 accepted as Trisidos Röding, 1798
62. Genus Parallepipedum Jousseaume, 1888 accepted as Trisidos Röding, 1798 (unjustified emendation of Parallelepipedum)
63. Genus Potiarca Iredale, 1939 accepted as Anadara (Potiarca) Iredale, 1939 represented as Anadara J. E. Gray, 1847
64. Genus Pseudoporterius Kamenev, 2007 accepted as Samacar Iredale, 1936
65. Genus Rasia J. E. Gray, 1857 accepted as Anadara J. E. Gray, 1847 (unaccepted > junior subjective synonym)
66. Genus Scapharca J. E. Gray, 1847 accepted as Anadara (Scapharca) J. E. Gray, 1847 represented as Anadara J. E. Gray, 1847 (unaccepted > superseded rank)
67. Genus Scapharcopsis F. Nordsieck, 1969 accepted as Anadara (Diluvarca) Woodring, 1925 † accepted as Anadara J. E. Gray, 1847 (unaccepted > junior subjective synonym)
68. Genus Sectiarca Olsson, 1961 accepted as Anadara J. E. Gray, 1847 (unaccepted > junior subjective synonym)
69. Genus Soldania De Stefani & Pantanelli, 1878 † accepted as Ambrogia Malatesta, 1974 † (unaccepted > junior homonym, invalid: junior homonym of Soldania d'Orbigny, 1826 [Foraminifera]; Ambrogia is a replacement name)
70. Genus Tosarca H. Noda, 1965 † accepted as Anadara (Tosarca) H. Noda, 1965 represented as Anadara J. E. Gray, 1847
71. Genus Trigonoarca [sic] † accepted as Trigonarca Conrad, 1862 † (unaccepted > misspelling - incorrect subsequent spelling)
72. Genus Ustularca Iredale, 1939 accepted as Barbatia J. E. Gray, 1842 (junior subjective synonym)
73. Genus Vitracar Iredale, 1939 accepted as Hawaiarca Dall, Bartsch & Rehder, 1938
74. Subfamily Anadarinae Reinhart, 1935 represented as Arcidae Lamarck, 1809
75. Subfamily Arcinae Lamarck, 1809 represented as Arcidae Lamarck, 1809
76. Subfamily Bathyarcinae Scarlato & Starobogatov, 1979 represented as Arcidae Lamarck, 1809
77. Subfamily Litharcinae Frizzell, 1946 represented as Arcidae Lamarck, 1809
78. Subfamily Scaphulinae Scarlato & Starobogatov, 1979 represented as Arcidae Lamarck, 1809
79. Genus Carbonarca Meek & Worthen, 1870 † (uncertain > unassessed)
80. Genus Trigonarca Conrad, 1862 † (uncertain > unassessed)

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