New Finds of Vendian Macrofossils in the Upper Precambrian of Chetlasskii Kamen Hill of the Timan Ridge (Arkhangelsk Oblast)

IF 0.7 4区 地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY
A. V. Kolesnikov, V. N. Pan’kov, V. A. Pan’kova, I. V. Latysheva, A. V. Shatsillo, N. B. Kuznetsov
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Abstract

Macrofossils of the Vendian soft-bodied organisms were found for the first time in the Vizinga and Ust’-Palega formations of the Upper Precambrian in Chetlasskii Kamen Hill (Middle Timan, Arkhangelsk oblast). Representatives of palaeopascichnids, aspidellamorphs, and possible frondomorphs, trace fossils, and microbially induced arumberiamorph structures were identified among molds and three-dimensional casts of fossils. Previously we revealed Vendian macrofossils in the Upper Precambrian in Dzhezhim-Parma Hill (South Timan, Komi Republic). The discovery of one more locality of various Ediacaran fossils in the middle part of the Timan Ridge significantly expands their paleogeography and also clarifies the time frame of deposition of the Vizinga and Ust’-Palega formations, the position of which in the Upper Precambrian section of Central Timan was debatable.

Abstract Image

提曼海脊切特拉斯基卡门山(阿尔汉格尔斯克州)上前寒武纪文迪安巨化石的新发现
摘 要 在切特拉斯基卡门山(阿尔汉格尔斯克州,中蒂曼)上前寒武纪的 Vizinga 和 Ust'-Palega 地层中首次发现了文登软体生物化石。在化石的模具和三维铸模中发现了古藤壶动物、蛛形纲动物、可能的软骨动物、微量化石和微生物诱导的假黄板状结构。此前,我们在 Dzhezhim-Parma 山(南蒂曼,科米共和国)发现了上前寒武纪的文迪恩大化石。在提曼海脊中段又发现了一个埃迪卡拉纪各种化石的地点,这大大扩展了它们的古地理范围,同时也明确了维津加和乌斯特-帕莱加地层的沉积时间框架,而这两个地层在中提曼上前寒武纪地段的位置一直存在争议。
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来源期刊
Doklady Earth Sciences
Doklady Earth Sciences 地学-地球科学综合
CiteScore
1.40
自引率
22.20%
发文量
138
审稿时长
3-6 weeks
期刊介绍: Doklady Earth Sciences is a journal that publishes new research in Earth science of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.
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