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Changes in the Ostracod Assemblages of the Northeastern Black Sea Shelf during the Late Pleistocene and Holocene

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Abstract

Distribution of 57 ostracod species is investigated in the Quaternary sediment samples from the borehole RBH-16, drilled at the north-eastern Black Sea shelf edge off the town of Anapa. Among them, 52 species of the Caspian type and 5 species of the Mediterranean type were found. Four distinct assemblage zones are identified: the Caspian type one typical for Chaudian basin (Early Neopleistocene) (I) in interval 15.55–14.11 m; the Caspian type one dominating from the Late Pleistocene to the early Holocene (II), according to species composition closed to Khvalynian basin, at the depth 13.4–3.84 m (from 13.6 to 8.7 cal. ka BP), the mixed one of Caspian type and Mediterranean type species (III) in interval 3.84–0.95 m (younger than 8.7 cal. ka BP), and the assemblage with progressively increasing dominance of Mediterranean species (IV) in interval above 0.75 m (after 7.4 cal. ka BP).

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ACKNOWLEDGMENTS

The authors would like to thank Dr. T.A. Yanina for her help in the identification of Chaudian mollusk fauna.

Funding

This study was supported by project 0149-2019-0007 by Shirshov Institute of Oceanology RAS and partly funded by the grant no. 18-34-00856 of Russian Foundation for Basic Research (RFBR).

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Authors and Affiliations

  1. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia

    M. A. Zenina & I. O. Murdmaa

  2. Institute of Geography, Russian Academy of Sciences, Moscow, Russia

    A. L. Chepalyga

  3. RINA Consulting S.p.A., Genova, Italy

    G. Malgezini

Authors
  1. M. A. Zenina
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  2. A. L. Chepalyga
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  3. I. O. Murdmaa
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  4. G. Malgezini
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Corresponding authors

Correspondence to M. A. Zenina, A. L. Chepalyga, I. O. Murdmaa or G. Malgezini.

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Zenina, M.A., Chepalyga, A.L., Murdmaa, I.O. et al. Changes in the Ostracod Assemblages of the Northeastern Black Sea Shelf during the Late Pleistocene and Holocene. Paleontol. J. 53, 885–888 (2019). https://doi.org/10.1134/S003103011909020X

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  • DOI: https://doi.org/10.1134/S003103011909020X

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