Title: Stratigrafii︠a︡ i paleoėkologii︠a︡ paleozoi︠a︡ i kaĭnozoi︠a︡ Severo-Vostoka evropeĭskoĭ chasti SSSR
Subjects: Stratigraphic Geology, Paleoecology
Places: Soviet Union
Time periods: Cenozoic, Paleozoic