Abstract
The foraminiferal genus Janischewskina of the family Janischewskinidae Reitlinger, 1996, which is widespread in Eurasia and plays an important role in stratigraphy of the Upper Viséan-Serpukhovian interval of the Lower Carboniferous (=Mississippian), is revised. The morphological characteristics of the genus and species were clarified and supplemented, details of the structure of the interseptal space and sutural apertures are clarified, and the stratigraphic and geographical distribution of the species is documented. A new foraminiferal species J. adtarusia Gibshman, Zaytseva and Stepanova, sp. nov. is described.
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ACKNOWLEDGMENTS
The authors are grateful to T.V. Filimonova for her help in studying the holotypes of foraminifera from the collection of the Geological Institute, Russian Academy of Sciences, and the late I.S. Barskov for valuable advice on organizing the structure of the article. The authors are sincerely grateful to the reviewers V.S. Vishnevskaya and A.S. Alekseev for careful reading of the manuscript and valuable comments that helped to significantly improve the paper. The authors are grateful to S.V. Nikolaeva for the careful translation of the manuscript.
Funding
This work was supported by the Russian Foundation for Basic Research (project nos. 15-05-00214 and 15-05-06393A). It was conducted within the framework of project 8-2 no. AAAA-A16-116033010097-5 (at Lomonosov Moscow State University), projects no. AAAA-A17-117121270033-6 (at Institute of Geology, Komi Research Center, Uralian Branch, Russian Academy of Sciences), no. AAAA-A18-118052590025-8 (at Institute of Geology and Geochemistry, Uralian Branch, Russian Academy of Sciences).
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Gibshman, N.B., Vevel, Y.A., Zaytseva, E.L. et al. Foraminifers of the Genus Janischewskina Mikhailov from the Upper Viséan-Serpukhovian (Mississippian) of Eurasia. Paleontol. J. 54, 91–110 (2020). https://doi.org/10.1134/S0031030120020045
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DOI: https://doi.org/10.1134/S0031030120020045