| details |
Late Oligocene |
|
USSR(Kazakh SSR) |
Boytsova,E.P. et al. Data on stratigraphy of continental Oligocene and Miocene formations of Turgai Depression. |
1954 |
| details |
Late Cretaceous |
Recent |
New Zealand(S.I.) |
Couper,R.A. Upper Mesozoic and Cainozoic spores and pollen grains from New Zealand. |
1953 |
| details |
Middle Oligocene |
|
USSR(Pavlodarskaya) |
Zaklinskaya,E.D. Material on the history of the flora and vegetation of the Paleogene of northern Kazakhstan in the area of Pavlodar Pr-Irtish. |
1953 |
| details |
Oligocene |
|
USSR(Pavlodarskaya) |
Zaklinskaya,E.D. Material on the history of the flora and vegetation of the Paleogene of northern Kazakhstan in the area of Pavlodar Pr-Irtish. |
1953 |