ИСТИНА

The Late Cretaceous main palaeogeographic features of the Eastern European Platform (EEP) and its framework, as well as Western Siberia are summarized on the base of micropalaeontological data. An integrated foraminiferal-radiolarian Zonation for the Late Albian-Maastrichtian is presented for all this area and serves as a basis for palaeogeographic reconstructions. The study is mainly focused on the several timeslices: Late Albian–Cenomanian, Turonian–Coniacian, Santonian–Campanian and Maastrichtian intervals.The Late Albian time was characterized by tectonic rebuilding all this area, when a meridional sea–straight through the EEP disappeared, and connections with western part of Peri-Tethyan seas, and Tethys Ocean opened. The presence Tethyan species inside micropalaeontological assemblages confirms more warm climate compared the Late Albian.