Abstract
The stratigraphic distribution of radiolarians in the Nordvik reverence section of the Volgian Stage was studied and analyzed. The Arctocapsula magna Bragin assemblage of the middle Volgian and the Arctocapsula perforata Bragin assemblage of the late Volgian-early Berriasian are distinguished in the section. Both assemblages are dominated by nassellarian radiolarians of the family Echinocampidae Bragin, which are known at present only from the Arctic and Boreal regions.
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