| details |
Early Oligocene |
Middle Oligocene |
USSR(Kazakh SSR) |
Boytsova,E.P. Fossil pollen of the Quercus species and its importance for the subdivision of the Paleogene deposits of the of the Western Siberian Lowland and western Kazakhstan. (In: On the Methods in Paleopalynological Studies.) |
1966 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Kazakh SSR) |
Boytsova,E.P. Fossil pollen of the Quercus species and its importance for the subdivision of the Paleogene deposits of the of the Western Siberian Lowland and western Kazakhstan. (In: On the Methods in Paleopalynological Studies.) |
1966 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Kazakh SSR) |
Boytsova,E.P. Fossil pollen of the Quercus species and its importance for the subdivision of the Paleogene deposits of the of the Western Siberian Lowland and western Kazakhstan. (In: On the Methods in Paleopalynological Studies.) |
1966 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Kazakh SSR) |
Boytsova,E.P. Fossil pollen of the Quercus species and its importance for the subdivision of the Paleogene deposits of the of the Western Siberian Lowland and western Kazakhstan. (In: On the Methods in Paleopalynological Studies.) |
1966 |
| original |
Early Oligocene |
|
USSR(WSL) |
Ushakova,M.V. et al. Lower Oligocene. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Early Oligocene |
|
USSR(WSL) |
Ushakova,M.V. et al. Lower Oligocene. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| original |
Early Oligocene |
|
USSR(WSL) |
Ushakova,M.V. et al. Lower Oligocene. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| details |
Early Oligocene |
|
USSR(Ukrainian SSR) |
Blank,M.Y. et al. On Upper Eocene and Oligocene Formations of the north-eastern Ukraine. |
1980 |
| details |
Early Oligocene |
|
USSR(Ukrainian SSR) |
Panova,L.A. The Oligocene of the West Siberian Lowland. (In: Cenozoic Flora of Siberia According to Palynological Data. V.N.Sacks and V.S.Volkova, editors) |
1971 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Tomskaya Oblast) |
Ilenok,L.L. et al. Correlation of Paleogene palynocomplexes in Southeastern West Siberia; Tomsk Oblast, Right Bank of the Ob River. (In: The Cenozoic of Siberia and Northeastern USSR. V.S.Zykina.editor) |
1989 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Kazakh SSR) |
Bronevoy,V.A. et al. Correlation of Oligocene deposits of different facies in Western Kazakhstan. (In: Geology and Useful Fossils from the Turgai Basin) |
1971 |
| details |
Early Oligocene |
|
USSR(Pre-Baltic) |
Pokrovskaya,I.M. Eocene and Lower Oligocene spore-pollen complexes of the Prebaltic. (In: Atlas of Upper Cretaceous, Paleocene and of the USSR). |
1960 |
| details |
Early Oligocene |
|
USSR(Kazakh SSR) |
Abuzyarova,R.Y. Results of spore-pollen investigations of Oligocene deposits of Shintuzsaya (Turgay) |
1955 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(WSL) |
Semochkina,T.G. Palynological characterization of Oligocene deposits in the Southwestern Part of the West Siberian Lowland |
1971 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Ukrainian SSR) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(WSL) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Far East) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |