| 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 |
| original |
Bartonian |
|
England(Hampshire) |
Bujak,J.P. Microplankton from the Barton Beds of the Hampshire Basin, England. |
1973 |
| details |
Eocene |
|
England(Dorset) |
Costa,L.I. et al. The distribution of the dinoflagellate Wetzeliella in the Paleogene of North-Western Europe. |
1976 |
| details |
Eocene |
|
England(Isle of Wight) |
Costa,L.I. et al. The distribution of the dinoflagellate Wetzeliella in the Paleogene of North-Western Europe. |
1976 |
| details |
Eocene |
|
England(Kent) |
Costa,L.I. et al. The distribution of the dinoflagellate Wetzeliella in the Paleogene of North-Western Europe. |
1976 |
| details |
Middle Eocene |
|
USSR |
Andreeva-Grigorovich,A.S. Zonal Division of the Paleocene-Eocene deposits according to dinocysts in the Southern Part of the USSR |
1985 |
| details |
Middle Eocene |
Late Eocene |
USSR(Ukrainian SSR) |
Andreeva-Grigorovich,A.S. et al. On the boundary of Eocene and Oligocene of the Scale zone of the Ukrainian Carpathians according to paleofloristic data. |
1985 |
| details |
Early Oligocene |
|
USSR(Ukrainian SSR) |
Vialov,O.S. et al. Eocene and Oligocene key boundary sections of the North Slope of the Ukrainian Carpathians |
1987 |