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Abstract <p>The new species <i>Lopatinia (Lopatinia) prima</i> sp. nov. is described from the Upper Oxfordian–Lower Kimmeridgian deposits of Northern Siberia (Anabar River basin). The diagnosis of the genus <i>Lopatinia</i> as well as its stratigraphic and palaeobiogeographic distributions are clarified. The boreal basins of Europe (most likely, the Russian Sea) were the center of the origin of the genus. Later, representatives of the genus spread to the Arctic basins, as well as to the Southern Hemisphere in the Notal Superrealm. In the Early Kimmeridgian the genus <i>Lopatinia</i> already had a bipolar distribution.</p>

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New Species of Bivalves of the Genus Lopatinia (Arcoidea, Cucullaeidae) from the Upper Jurassic of Northern Siberia

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • I. N. Kosenko,
  • B. L. Nikitenko,
  • S. N. Khafaeva,
  • A. V. Yadrenkin,
  • A. Yu. Popov

摘要

Abstract

The new species Lopatinia (Lopatinia) prima sp. nov. is described from the Upper Oxfordian–Lower Kimmeridgian deposits of Northern Siberia (Anabar River basin). The diagnosis of the genus Lopatinia as well as its stratigraphic and palaeobiogeographic distributions are clarified. The boreal basins of Europe (most likely, the Russian Sea) were the center of the origin of the genus. Later, representatives of the genus spread to the Arctic basins, as well as to the Southern Hemisphere in the Notal Superrealm. In the Early Kimmeridgian the genus Lopatinia already had a bipolar distribution.