Late Eocene and Lower Oligocene land flora and vegetation (leaf flora, spores, pollen). (In: Late Eocene - Early Oligocene Geological and Biotical Events on the Territory of the Former Soviet Union. Part 1: The Regional Geology of the Upper Eocene and Lower Oligocene. V.A.Krasheninnikov and M.A.Akhmetiev, editors)
Akhmeteev,M.A. et al. (1996)
Late Eocene and Lower Oligocene land flora and vegetation (leaf flora, spores, pollen). (In: Late Eocene - Early Oligocene Geological and Biotical Events on the Territory of the Former Soviet Union. Part 1: The Regional Geology of the Upper Eocene and Lower Oligocene. V.A.Krasheninnikov and M.A.Akhmetiev, editors) [ Nazemnaya flora I rastitelnost (listovaya flora, spory, pyltsa) Pozdnego Eotsena - Rannego Oligotsena. ] Trudy Rossiyskaya Akademiya Nauk, Geologicheskiy Institut. Geos. Mezhdunarodnaya Programma Geologicheskoi Korrelyatsii.
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