Abstract

A representative of the colonial radiolarians of the genus Siphonosphaera has been discovered in the Upper Jurassic (lower substage of the Volgian Stage = Lower Tithonian) deposits of the Bazhenovo Regional Substage on the Yamal Peninsula in the Arctic periphery of Western Siberia. This discovery is important for understanding the geological history of colonial radiolarians. A new species, Siphonosphaera yamalica Vishnevskaya et Amon, sp. nov. is described.

中文翻译：

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在侏罗纪沉积物中首次发现殖民地放射虫（西伯利亚北极地区）

摘要

属殖民地放射虫的代表Siphonosphaera已在晚侏罗世的亚马尔半岛地区Bazhenovo台下存款在西西伯利亚北极周边（该Volgian舞台=下提通阶的低个子）被发现。这一发现对于了解殖民放射虫的地质历史很重要。一个新物种Siphonosphaera yamalica Vishnevskaya et Amon，sp。十一月 被描述。