New Gastropod Species from the Pleistocene
of the Upper Don Basin
P. E. Kondrashov
Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya ul. 123, Moscow, 117997 Russia
Northwest Missouri State University, 800 University Drive, Maryville, MO 64468, USA
e-mail: email@example.com, firstname.lastname@example.org
Received August 3, 2006
AbstractTwo new species of fossil freshwater gastropods, Borysthenia intermedia sp. nov. and Tanousia
krasnenkovi sp. nov., from the Tiraspol deposits of the Middle Pleistocene of the OkaDon Plain are described.
Parafossarulus priscillae (Girotti, 1972), Viviparus diluvianus (Künth, 1865), and Lithoglyphus jahni Urbasn-
ski, 1975 are reported from Russia for the first time. The status of some problematic species of freshwater gas-
tropods from the Middle Pleistocene of the region studied is discussed. The chronological and environmental
significance of all gastropods studied is given.
Key words: Gastropoda, mollusks, new species, biostratigraphy, paleoenvironment, Middle Pleistocene, Russia.
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