| original |
Late Visean |
|
Poland |
Karczewska,J. Carboniferous spores from the Chelmi Boring (Eastern Poland). |
1967 |
| details |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |
| details |
Visean |
|
Poland |
Pi©rart,P. Systematics, stratigraphic and geographic distribution of Carboniferous and Permian megaspores. |
1975 |
| details |
Visean |
|
Poland |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Late Visean |
|
France |
DybovЎ-Jachowiczowa,S. et al. Revision of Carboniferous megaspores with Gula (Part Three) |
1987 |