For citations:

Ustinova M.A., Vishnevskaya V.S., Marinov V.A., Ovchinnikova A.S., Zhegallo E.S. On the first discovery of calcareous nannoplankton in the Lower Berezovo sub-formation (Upper Cretaceous, Coniacian-Campanian Stages) of Western Siberia. Moscow University Bulletin. Series 4. Geology. 2025;64(4):39-51. (In Russ.) https://doi.org/10.55959/MSU0579-9406-4-2025-64-4-39-51