| original |
Late Oligocene |
|
USSR(Kazakh SSR) |
Zaklinskaya,E.D. Stratigraphic significance of pollen grains of Gymnosperms of the Cenozoic deposits of the Pavlodar Pri-Irtish and the northern Pri-Aral. |
1957 |
| details |
Late Eocene |
Early Oligocene |
USSR(Mountain Altai) |
Rosenberg,L.I. On stratigraphy of Cenozoic (Preglacial) deposits of Upland Altai |
1973 |
| details |
Karpathian |
Badenian |
Hungary |
Nagy,E. Sporomorphs of the Neogene in Hungary |
1985 |
| details |
Late Eocene |
|
USSR(Kazakh SSR) |
Panova,L.A. et al. Palynostratigraphy of Paleogene deposits. (In: Practical Palynostratigraphy. L.A. Panova et al, editors) |
1990 |