Vendian Macrofossils of the Yudoma Group, Southeast of the Siberian Platform
| Autor: | A. Yu. Ivantsov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010506 paleontology
biology Small shelly fauna Palaeopascichnus Paleontology Macrofossil 010502 geochemistry & geophysics biology.organism_classification 01 natural sciences Precambrian Stage (stratigraphy) Phanerozoic Treptichnus pedum Geology 0105 earth and related environmental sciences Aspidella |
| Zdroj: | Paleontological Journal. 52:1335-1346 |
| ISSN: | 1555-6174 0031-0301 |
| DOI: | 10.1134/s0031030118120092 |
| Popis: | An assemblage of Late Precambrian macrofossils consisting of five species (Aspidella terranovica, Beltanelliformis brunsae, Nenoxites curvus, Palaeopascichnus renarius, and Suvorovella aldanica), was discovered in the type sections of the Yudoma Group of the Siberian Platform. A unique feature of the assemblage is the presence of carbonate discoidal remains of Suvorovella, formed as a result of secondary incrustation of basal structures, similar to Aspidella. The accumulations of redeposited fragments of Suvorovella formed the rock resembling the Phanerozoic shell beds. Except for this taxon, all members of the Yudoma assemblage have a wide geographic distribution. Their stratigraphic distribution tends to occur in the youngest deposits of the Upper Vendian, directly underlying the beds with small shelly fauna (SSF) of the Nemakit-Daldynian Stage, Cloudina tubes, and traces of the Treptichnus pedum Zone. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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