Holocene ostracod zones of the Western Black Sea shelf

Three successive associations are distinguished in the development of the ostracod fauna during the Holocene. They are related to the progressive salinification of the Black Sea. The following ostracod zones are divided and desc ribed: Cyprideis torosa Z one with A and B Subzones, and the overlaying Falunia rubra and Loxoconcha granulata Zone. An attempt is made to correlate these zones with molluscan zones. Their age is also discussed.