| details |
Early Oligocene |
|
Russia(Caucasus) |
Zaporozhets,N.I. Lower Oligocene palynology and phytoplankton of the northern Caucasus |
1993 |
| details |
Late Eocene |
Early Oligocene |
Belarus |
Zaporozhets,N.I. et al. Organic-walled phytoplankton in the Upper Eocene - Lower Oligocene deposits of the former Soviet Union. (In: Late Eocene-Early Oligocene geological and Biotical events on the Territory of the Former Soviet Union.Part 2: the regional geology of the Upper Eocene and Lower Oligocene. V.A.Krasheninnikov and M.A.Akhmetiev, editors) |
1996 |
| details |
Late Eocene |
Early Oligocene |
Antarctica |
Zinsmeister,W.J. et al. Late Eocene (to possibly Earliest Oligocene) molluscan fauna of the La Meseta Formation of Seymour Island, Antarctic Peninsula. (In: Antarctic Geoscience. C.Craddock, editor) |
1982 |
| 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 |