The occurrence of <em>Dickinsonia</em> in non-marine facies

N. I. Bobkov; A. V. Kolesnikov; A. V. Maslov; D. V. Grazhdankin

doi:10.3989/egeol.43587.551

The occurrence of Dickinsonia in non-marine facies

Authors

N. I. Bobkov Trofimuk Institute of Petroleum Geology and Geophysics of Siberian Branch of Russian Academy of Sciences - Novosibirsk State University https://orcid.org/0000-0003-1876-6445
A. V. Kolesnikov Trofimuk Institute of Petroleum Geology and Geophysics of Siberian Branch of Russian Academy of Sciences - Geological Institute, Russian Academy of Sciences - Moscow State Pedagogical University https://orcid.org/0000-0003-1028-9082
A. V. Maslov Geological Institute, Russian Academy of Sciences - Zavaritsky Institute of Geology and Geochemistry of the Ural Branch of the Russian Academy of Sciences https://orcid.org/0000-0003-4902-5789
D. V. Grazhdankin Trofimuk Institute of Petroleum Geology and Geophysics of Siberian Branch of Russian Academy of Sciences - Novosibirsk State University https://orcid.org/0000-0003-0797-1347

DOI:

https://doi.org/10.3989/egeol.43587.551

Keywords:

Dickinsonia, soft-bodied metazoan, continental environments, Ediacaran

Abstract

Dickinsonia in the central Urals occurs in a succession transitional from marginal marine to non-marine. Even within this sequence Dickinsonia appears to be restricted to the least marine facies interpreted as a coastal lagoon surrounded by tidal flats. Another puzzling aspect is the complete absence of other Ediacaran taxa that are usually found together with Dickinsonia in other fossil localities. In fact, the Sinii Kamen Member of the Cherny Kamen Formation yielded an assemblage of Ediacaran macrofossils including aspidellamorph and mawsonitomorph holdfasts, frondomorphs, palaeopascichnids, and concentric ring structures of microbial origin; however, fossils of Dickinsonia have never been found in this association.

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References

Grazhdankin, D.V.; Maslov, A.V. & Krupenin, M.T. (2009). Structure and depositional history of the Vendian Sylvitsa Group in the western flank of the Central Urals. Stratigraphy and Geological Correlation, 17 (5): 475-492. https://doi.org/10.1134/S0869593809050025

Sozonov, N.G.; Bobkov, N.I.; Mitchell, E.G.; Kolesnikov, A.V. & Grazhdankin, D.V. (2019). The ecology of Dickinsonia on tidal flats. Estudios Geológicos, 75(2): e116. https://doi.org/10.3989/egeol.43587.571

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Published

2019-12-30

How to Cite

Bobkov, N. I., Kolesnikov, A. V., Maslov, A. V., & Grazhdankin, D. V. (2019). The occurrence of Dickinsonia in non-marine facies. Estudios Geológicos, 75(2), e096. https://doi.org/10.3989/egeol.43587.551

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Issue

Vol. 75 No. 2 (2019)

Section

Articles

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