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The foraminiferal zonal scale of the Devonian–Carboniferous boundary beds in Russia and Western Kazakhstan and its correlation with ammonoid and conodont scales

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Abstract

This paper reviews the foraminiferal biostratigraphy of the Devonian–Carboniferous (D–C) boundary beds in Russia and Western Kazakhstan. The regional records of the zonal successions of Russia are summarised from sections and boreholes of the Volga-Urals Subregion of the East European Platform (Syzran no. 401 Borehole, Melekesskaya no.1 Borehole); Timan-Pechora Province of the East European Platform (Kamenka Section); South Urals (Sikaza, Zigan, Ryauzyak and Dzerzhinka sections); Middle Urals (Pershino Section); and West Siberia, Vagai-Ishim Basin (Borehole no. 1 Kurgan-Uspenskaya), and the zonal successions of Western Kazakhstan are summarised from the Mugodzhary Mountains. Three foraminiferal biozones can be defined in the interval comprising the latest Devonian and earliest Carboniferous: Quasiendothyra kobeitusana Zone, the Tournayellina pseudobeata – remnant Quasiendothyra Zone, and the Earlandia minima Zone. The D–C boundary interval is situated within the Tournayellina pseudobeata–remnant Quasiendothyra Zone. A correlation with the ammonoid and conodont zonations is proposed, which is useful for correlating deep-water and shallow-water successions.

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Abbreviations

GIN RAS:

Geological Institute of the Russian Academy of Sciences

IG UFRC RAS:

Institute of Geology, Ufa Federal Research Center, Russian Academy of Sciences

VIMS:

All-Russian Scientific-Research Institute of Mineral Resource

VNIGNI:

All-Russia Research Geological Oil Institute

VNIGRI:

All-Russia Petroleum Research Exploration Institute

IG FRC Komi SC UB RAS:

Yushkin Institute of Geology of the Komi Science Center of the Ural Branch, Russian Academy of Sciences

IGG UBr RAS:

Zavaritsky Institute of Geology and Geochemistry, Ural Branch, Russian Academy of Sciences

PIN PAS:

Paleontological Institute, Russian Academy of Sciences

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Acknowledgements

We are grateful to A. S. Alekseev and М. Aretz for critically reading the manuscript and making valuable comments, T. V. Filimonova for photographing type material from Rauser-Chernousova’s (1948a) type collections housed in the Geological Institute, Russian Academy of Sciences (Moscow), and Max Barclay (Natural History Museum, London) for checking the English. The study was supported by the Program of the Presidium of the Russian Academy of Sciences “Origin of the Biosphere and Evolution of Geo-Biological Systems” for S. Nikolaeva (PIN RAS), project “Geobiological Events in the Evolution of the Biota on the Example of Cephalopods and Radiolarians” for S. Nikolaeva (PIN RAS); the State Programs no. AAAA-A16-116033010097-5 (Lomonosov Moscow State University), 0246-2019-0118 (IG UFRC RAS), AAAA-A17-117121270033-6 and AAAA-A17-117121140081-7 (IG FRC Komi SC UB RAS); and AAAA-A18-118052590025-8 and AAAA-A18-118052590031-9 (IGG UBr RAS). This study was partly funded by a subsidy of the Russian Government to support the Program of Competitive Growth of Kazan Federal University among the world’s leading academic centers.

The authors are grateful to J. Denayer (Belgium) and J. Kalvoda (Czech Republic) for reviewing the manuscript and useful comments.

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Kulagina, E.I., Zaytseva, E.L., Vevel, Y.A. et al. The foraminiferal zonal scale of the Devonian–Carboniferous boundary beds in Russia and Western Kazakhstan and its correlation with ammonoid and conodont scales. Palaeobio Palaeoenv 101, 561–588 (2021). https://doi.org/10.1007/s12549-020-00439-y

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