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ALBIAN AND SENOMANIAN FORAMINIFERAL ASSEMBLAGES FROM A NEW SECTION OF THE NORTHERN PALEOBIOGEOGRAPHIC DISTRICT OF WESTERN SIBERIA
V. M. Podobina
National Research Tomsk State University, Tomsk, Russia
Three foraminiferal assemblages have been established in a new section of East Padinskaya area (Pokur
superhorizon), in the northern paleobiogeographic district of Western Siberia. Of them, two are already known
from the Khanty-Mansiysk Horizon as Gadryinopsis tailleuri (lower Albian), and Ammobaculites fragmentarius, Gaudryinopsis filiformis (middle Albian) foraminiferal zones; the third one, the Gaudryinopsis elongates foraminiferal assemblage first recognized in the middle portion of the Uvat Horizonis dated tentatively as middle Cenomanian. Agglutinated quartz-siliceous foraminifera have been identified (with exact indication of index species) in the Albian and Cenomanian foraminiferal assemblages. The novel foraminiferal taxa have been described.
Keywords: foraminifera, zones, complexes, Albian, Cenomanian, new section, Western Siberia.
DOI 10.20403/2078-0575-2026-1-3-12
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