| details |
Early Tournaisian |
Late Visean |
Egypt |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |
| details |
Nd |
|
Nd |
Higgs,K.T. et al. Megaspores from the Uppermost Devonian, (Strunian), of Hook Head, County Wexford, Ireland. |
1982 |
| details |
Late Devonian |
Early Tournaisian |
Arctic Ocean |
Kaiser,H. The Upper Devonian flora of Bear Island. 3. Microflora of the Uppermost Upper Devonian and Lower Carboniferous. |
1970 |
| original |
Early Carboniferous |
|
Egypt |
Dijkstra,S.J. Lower Carboniferous megaspores. |
1956 |