ИСТИНА

Microfossils (planktonic and benthic foraminifers, radiolarians, and nannoplankton) are widespread within the Upper Cretaceous of the Russian sector of the Eastern European Platform. Traditionally, the biostratigraphy of sedimentary deposits of the Eastern European Platform is based on the macrofauna. However, some stratigraphic intervals contain little or no macrofauna, and biostratigraphic subdivision can only be done on the basis of the microfossils. The proposed integrated scheme for the Upper Cretaceous of the Russian sector of Eastern European area consists of 12 planktonic foraminiferal subdivisions, 23 benthic foraminiferal zones, 10 radiolarian zonal subdivisions with 18 infrazonal bioevents and 26 nannoplankton zones. Thus, the planktonic and benthic foraminiferal zonations shows substage and intrastage subdivisions, whereas nannoplankton and radiolarian zonations allows the establishment of stage boundaries, being mutually complementary. The integration of microfossil biostratigraphic data from sequences in the Russian sector of Eastern European Platform seems very promising for creation of a united micropalaeontological zonal scale for the temparate region. Key words: Radiolaria, Foraminifera, planktonic, benthic, nannoplankton, Eastern Russia.This research is supported by the Russian Foundation for Basic Research: 12-05-00690, 12-05-00263 и 13-05-00447.