New records of bipolar nuculanid bivalves of the genus Glyptoleda in the Permian of northeastern Asia


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Abstract

Geographical and stratigraphical ranges of the bipolar nuculanid bivalves of the genus Glyptoleda is considered. In the Boreal Biogeographical Superrealm, Glyptoleda is only known in the eastern (high boreal) part: in the Novaya Zemlya and Verkhoyansk–Okhotsk provinces. Glyptoleda is recorded for the first time in the Kolyma–Omolon Province. Possibly, the appearance of glyptoleds in the northern Eurasian basins was associated with cooling episodes. A new species, Glyptoleda parenica sp. nov., is described from the Kungurian–Roadian beds of the southeastern framing of the Omolon Massif.

About the authors

A. S. Biakov

Shilo Northeast Interdisciplinary Scientific Research Institute, Far East Branch; Kazan (Volga) Federal University

Author for correspondence.
Email: abiakov@mail.ru
Russian Federation, Portovaya ul. 16, Magadan, 685000; ul. Lenina 18, Kazan, 420008

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