Middle Ura Association of Organic-Walled Microfossils: the Lower Vendian of the Patom Basin, Siberia
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Published:2023-09-25
Issue:5
Volume:31
Page:410-424
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ISSN:0869-5938
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Container-title:Stratigraphy and Geological Correlation
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language:en
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Short-container-title:Stratigr. Geol. Correl.
Author:
Vorob’eva N. G.,Petrov P. Yu.
Abstract
Abstract
A new assemblage of Early Vendian (Middle Ediacaran) microfossils, including acanthomorphic acritarchs and various filamentous remains, as well as sphaeromorphic striated vesicles of Valeria, which are not characteristic of deposits of this age, is described from the Ura Formation of the Dal’nyaya Taiga Group of the Patom Basin. A new species of acanthomorphs Hocosphaeridium crispum sp. nov. is recognised. The Ediacaran eukaryotic phytoplankton taphocoenoses are shown to be selectively restricted to the open-sea proximal facies of the inner ramp.
Publisher
Pleiades Publishing Ltd
Subject
Paleontology,Stratigraphy,Geology
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