| details |
Early Oligocene |
Middle Oligocene |
USSR(Kazakh SSR) |
Aristova,K.E. Analogous Paleogene Beloglinsk and Kyzy Idzharsk horizons in northern Pre-Aral and northern Ust-Urt. (from pollen, spores and microplankton). (In: Palynology and Stratigraphy of the Paleozoic, Mesozoic and Paleogene of the European part of the USSR and Central Area.) |
1971 |
| details |
Late Eocene |
|
USSR(Ukrainian SSR) |
Aristova,K.E. Analogous Paleogene Beloglinsk and Kyzy Idzharsk horizons in northern Pre-Aral and northern Ust-Urt. (from pollen, spores and microplankton). (In: Palynology and Stratigraphy of the Paleozoic, Mesozoic and Paleogene of the European part of the USSR and Central Area.) |
1971 |
| details |
Early Oligocene |
Middle Oligocene |
USSR(Ukrainian SSR) |
Aristova,K.E. Analogous Paleogene Beloglinsk and Kyzy Idzharsk horizons in northern Pre-Aral and northern Ust-Urt. (from pollen, spores and microplankton). (In: Palynology and Stratigraphy of the Paleozoic, Mesozoic and Paleogene of the European part of the USSR and Central Area.) |
1971 |
| details |
Middle Eocene |
Late Eocene |
USSR(Ukrainian SSR) |
Stotland,A.B. Stratigraphic subdivision and age of Amber-bearing rocks in the northern Slope of the Ukrainian Crystalline Massif according to data of microphytofossil studies |
1990 |
| details |
Late Oligocene |
|
USSR(Russian Platform) |
Zosimovich,V.Y. A boundary of Oligocene and Miocene in the Boreal Province of the East-European Platform |
1991 |
| details |
Early Oligocene |
|
Germany |
Evitt,W.R. Observations on the morphology of fossil dinoflagellates. |
1961 |
| details |
Eocene |
|
Romania |
Baltes,N. Tertiary plant microfossil assemblages from the Nnonian Depression, (Rumania), and their palaeoecology. |
1971 |
| details |
Late Oligocene |
|
W.Germany(Niedersachsen) |
Gerlach,E. Oligocene and Miocene microfossils of Northwestern Germany, with special consideration of Hystrichospheres and dinoflagellate. |
1961 |
| details |
Late Paleocene |
Early Oligocene |
Nd |
Sarjeant,W.A.S. The stratigraphical distribution of fossil dinoflagellates. |
1967 |
| details |
Early Oligocene |
|
Belgium |
Weyns,W. Dinophyceae and acritarcha in the "Sands of Grimmertingen" in their type locality, and the stratigraphic problem of Tongrian. |
1970 |
| details |
Early Oligocene |
|
USSR(Tadzhik SSR) |
Oleynik,E.S. Phytoplankton from Oligocene deposits of the Tadzhik Depression |
1971 |
| details |
Middle Oligocene |
|
USSR(Tadzhik SSR) |
Oleynik,E.S. Phytoplankton from Oligocene deposits of the Tadzhik Depression |
1971 |
| details |
Early Oligocene |
Middle Oligocene |
USSR |
Aristova,K.E. Pollen and microplankton from boundary Eocene and Oligocene deposits in the southern part of the USSR. |
1971 |
| details |
Paleocene |
Late Eocene |
Germany |
Vozzhennikova,T.F. Introduction to the study of fossilized Peridinid algae. |
1965 |
| details |
Early Oligocene |
|
Baltic |
Vozzhennikova,T.F. Introduction to the study of fossilized Peridinid algae. |
1965 |
| details |
Eocene |
Early Oligocene |
USSR |
Vozzhennikova,T.F. Introduction to the study of fossilized Peridinid algae. |
1965 |
| details |
Early Oligocene |
|
Poland |
Eisenack,A. Microfossils from the Lower Oligocene phosphorites of Samland and concerning the uniformity of Hystrichospheres. |
1954 |