Abstract

The taxonomic composition of acanthomorphic acritarchs from the Vendian terrigenous deposits of the Prepatom, Nepa–Botuoba, Syugdzhera, and Anabar structural-facies districts of the Siberian Platform was studied. We found acanthomorphic microfossils at three stratigraphic levels: in the lower and upper parts of the Nepa Regional Stage and in the lower subformation of the Byuk Formation of the Tira Regional Stage. Monographic description of new acritarchs Tanarium longidigitatum sp. nov., Tuberculum proteum sp. nov., Uniexcrescentia tubulosa gen. et sp. nov., and Pterospermopsimorpha mutabilis sp. nov. was carried out.

中文翻译：

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西伯利亚地台内部 Vendian 沉积物中的棘齿晶

摘要

研究了西伯利亚地台的 Prepatom、Nepa–Botuoba、Syugdzhera 和 Anabar 构造相区的 Vendian 陆源沉积物中棘形类 acritarchs 的分类组成。我们在三个地层层级发现了棘形微化石：Nepa 区域阶段的下部和上部以及 Tira 区域阶段的 Byuk 组的下亚层。新 acritarchs Tanarium longidigitatum sp. 的专题描述。十一月，结核菌属sp。十一月，Uniexcrescentia tubulosa gen。等SP。十一月，和Pterospermopsimorpha mutabilis sp。十一月 进行了。