Patinopecten brummeli (FOSSIL) (P. Nyst, 1864 †)
Camptonectes bubonis (FOSSIL) L.W. Stephenson, 1941 †
Lindapecten buchivacoanus (FOSSIL) (F. Hodson & al., 1927 †)
Cryptopecten bullatus (P. Dautzenberg& A.R.J.B. Bavay, 1912)
Pecten burdigalensis (FOSSIL) (Lamarck 1809) †
Ochotochlamys bureiensis (FOSSIL) Sey, 1984 †
Eburneopecten burlesonensis (FOSSIL) (Harris 1919) †
Camptonectes burlingtonensis (FOSSIL) (W.M. Gabb, 1860 †)
Mesopeplum burnetti (FOSSIL) (C.A. von Zittel, 1865 †)
Pecten byoritsuensis (FOSSIL) S. Nomura, 1933 †
Pecten byramensis (FOSSIL) Gardner, 1945 †
Chlamys cacawensis (FOSSIL) G.F. Harris, 1919 †
Chagrepecten cactaceus (FOSSIL) (W.H. Dall, 1898 †)
Pecten cadwalladerensis (FOSSIL) McLearn, 1942 †
Chlamys caillaudi (FOSSIL) P. Oppenheim, 1903 †
Chlamys calkinsi (FOSSIL) R. Arnold, 1906 †
Argopecten callidus (FOSSIL) L.G. Hertlein, 1925 †
Chlamys callimorphus (FOSSIL) C.J. Maury, 1924 †
Nodipecten caloosaensis (FOSSIL) W.H. Dall, 1898 †
Chlamys caloosensis (FOSSIL) W.C. Mansfield, 1939 †
Eburneopecten calvatus (FOSSIL) (Morton, 1833 †)
Leptopecten camerella (S.S. Berry, 1968)
Ruthipecten campestris (FOSSIL) Quilty & al., 2016 †
Pecten camuycenicus (FOSSIL) C.J. Maury, 1920 †
Mimachlamys canalis (FOSSIL) (J. Brown & H.A. Pilsbry,1913 †)
Chlamys carinata (FOSSIL) Sowerby, 1828 †
Pecten carrizoensis (FOSSIL) R. Arnold, 1906 †
Chlamys catherina (FOSSIL) (Cragin, 1893 †)
Patinopecten caurinus (Gould, 1850)
Pecten ceibanus (FOSSIL) Cooke, 1928 †
Jorgechlamys centralis (FOSSIL) (Sowerby, 1846 †)
Antillipecten cercadicus (FOSSIL) (C.J. Maury, 1917 †)
Eburneopecten cerinus (FOSSIL) T.A. Conrad, 1869 †
Nodipecten cerrosensis (FOSSIL) (W.M. Gabb, 1869 †)
Pseudamussium challengeri (E.A. Smith, 1891)