| details |
Kinderhookian |
Osagean |
Pennsylvania |
Chaloner,W.G. Mississippian megaspores from Michigan and adjacent states. |
1954 |
| details |
Kinderhookian |
Osagean |
Michigan |
Chaloner,W.G. Mississippian megaspores from Michigan and adjacent states. |
1954 |
| details |
Namurian B |
|
Poland |
Dijkstra,S.J. et al. A monographic revision of Carboniferous megaspores with special consideration to South Limburg, (Netherlands). |
1946 |
| details |
Namurian B |
|
Poland |
Dijkstra,S.J. et al. A monographic revision of Carboniferous megaspores with special consideration to South Limburg, (Netherlands). |
1946 |
| details |
Early Carboniferous |
|
Egypt |
Dijkstra,S.J. Lower Carboniferous megaspores. |
1956 |