| details |
Visean |
|
USSR(Ukrainian SSR) |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Visean |
|
Poland |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Late Visean |
|
Nd |
DybovЎ,S. et al. The megaspores with a Corona of the Carboniferous. (In: General Problems of the Carboniferous Stratigraphy) |
1978 |
| details |
Visean |
|
Poland |
Karczewska,J. Megaspores of the Turma Zonales from the Carboniferous of Poland, (northern Poland). Part 1 |
1975 |
| details |
Late Visean |
|
USSR |
DybovЎ-Jachowiczowa,S. et al. Revision of the Carboniferous megaspores with Corona. |
1977 |