| details |
Early Oligocene |
|
USSR(Ukrainian SSR) |
Stotland,A.B. On the stratigraphic position of the Khar'kovsk series in the Kiev Pre-Dnieper |
1985 |
| details |
Early Oligocene |
|
USSR(Siberia) |
Kulkova,I.A. Alteration of palynoflora near the boundary of Eocene and Oligocene in Siberia. (In: Problems of Modern Palynology. A.F.Chlonova, editor) |
1984 |
| 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 |
| 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 |
|
Canada(British Columbia) |
Rouse,G.E. et al. Tertiary geology and palynology of the Quesnel area, British Columbia. |
1979 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Trans-Urals) |
Li,P.F. et al. Continental deposits of the Paleogene and Neogene of the eastern Slopes of the Urals and Trans-Urals |
1967 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Urals) |
Li,P.F. et al. Continental deposits of the Paleogene and Neogene of the eastern Slopes of the Urals and Trans-Urals |
1967 |
| details |
Early Oligocene |
|
USSR(Kazakh SSR) |
Abuzyarova,R.Y. Results of spore-pollen investigations of Oligocene deposits of Shintuzsaya (Turgay) |
1955 |
| details |
Early Oligocene |
|
USSR(Ukrainian SSR) |
Korallova,V.V. Khaduman spore-pollen complex from Oligocene sediments of the eastern Black Sea Region. |
1963 |
| details |
Early Oligocene |
|
Canada(British Columbia) |
Piel,K.M. Palynology of Oligocene sediments from Central British Columbia |
1971 |
| details |
Early Oligocene |
|
Canada(British Columbia) |
Piel,K.M. Palynology of Oligocene sediments from Central British Columbia |
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 |