| details |
Early Miocene |
|
Black Sea |
Andreeva-Grigorovich,A.S. Peridinium. (In: Stratigrafiya SSSR, Neogenova Sistema. M.V.Muratov and L.A.Nevesskaya, editors) |
1986 |
| details |
Early Oligocene |
|
USSR(Carpathians) |
Andreeva-Grigorovich,A.S. et al. Biostratigraphic characteristic of the Menilite Suite standard section along the River Chechva, (The Ukrainian Carpathians) |
1986 |
| details |
Early Oligocene |
|
USSR(Carpathians) |
Andreeva-Grigorovich,A.S. The Nannoplankton and dinocyst from the boundary of the Eocene-Oligocene deposits of the Carpathians |
1987 |
| original |
Middle Oligocene |
Late Oligocene |
Germany |
Alberti,G. Studies of the genus Deflandrea, Eisenack, (Dinoflagellata) in the Cretaceous and Lower Tertiary of North and Middle Germany. |
1959 |
| details |
Late Eocene |
|
USSR(Kazakh SSR) |
Akhmeteev,M.A. et al. Upper Eocene Oligocene spore and pollen, plant macrofossils and phytoplankton in stratotypes of Tchegan and Astsheairyk Formations (North Usturt, Kazakhstan). |
1992 |