Argopecten woodringi (FOSSIL) E.M. Spieker, 1922 †
Neithea wrighti (FOSSIL) (Shumard, 1860 †)
Camptochlamys wunschae (FOSSIL) J. Marwick, 1953 †
Serripecten yahliensis (FOSSIL) (Tenison Woods, 1865 †)
Mirapecten yaroni H.H. Dijkstra & J. Knudsen,1998
Chlamys yastchanensis (FOSSIL) Milova, 1985 †
Mizuhopecten yessoensis (Jay, 1857)
Mizuhopecten yessoensis yokoyamae (FOSSIL) (O. Masuda, 1962 †)
Vertipecten yneziana (FOSSIL) (R. Arnold, 1907 †)
Delectopecten zacae (L.G. Hertlein, 1935)
Zamorapecten zamorensis (FOSSIL) (F. Hodson & F. Hodson,1927 †)
Talochlamys zelandiae (J.E. Gray, 1843)
Talochlamys zelandiae suprasilis (H.J. Finlay, 1928)
Euvola ziczac (C. Linnaeus, 1758)
Camptochlamys zitteli (FOSSIL) Wohrmann & E.F.R.K. Koken,1892 †