| details |
Tournaisian |
Visean |
USSR(Ukrainian SSR) |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Early Carboniferous |
|
Poland |
Brzozowska,M. Megaspore analysis of rock samples of the Glogoc Zow IG-1 Borehole. |
1975 |
| original |
Early Carboniferous |
|
USSR(Moscow Basin) |
Dijkstra,S.J. et al. Lower Carboniferous megaspores from the Moscow Basin. |
1957 |
| details |
Early Carboniferous |
|
USSR(Moscow Basin) |
Dijkstra,S.J. et al. Lower Carboniferous megaspores from the Moscow Basin. |
1957 |