Significance of fresh water molluscs for correlation of continental and marine Pleistocene of Ponto Caspian
Abstract Correlation of continental and marine deposits of Ponto Caspian is based by the author on the joint findings or on the interlaid deposits of fresh water and sea (salt water) molluscs. These locations were observed in the sediments of limans, deltas and fresh water parts of the sea at river mouths as well as in the sediments of bays and straits of the northern part of the Ponto Caspian Basin. They were studied in the liman, deltaic and sublitoral deposits of the Danube Bay, the northeastern and southern coasts of the Sea of Azov, the Kerch and Manich straits and the northern Pricaspian. Paleogeographical conditions in these regions favoured the migration of fresh water molluscs and stipulated the identity of their composition and evolution in the river systems of the south and southeastern part of the Russian Plain.