The new data of spore-pollen investigation of Ukrainian Polissia oligocene sediments are given. Two spore-pollen comlexes are described and compared with contemporary complexex of adjacent regions. Investigated complexes are mostly similar to such in Dnipro-Donets Trough, but it have a features of contemporary complexes of Prypiat depression. The Mezhyhirian age (Early Оligocene, Rupelian) of investigated complexes is defined.

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