| details |
Westphalian B |
|
Romania |
Olaru,L. et al. Palynology of the Tibau Formation on the Bistrita Valley in the eastern Carpathians, the Ia Cobeni-Ciocanesti area |
1985 |
| details |
Early Stephanian |
Middle Stephanian |
France(Jura) |
Navale,G.K.B. Palynologic study of some coals of France in relation to their petrographic structure. |
1962 |
| details |
Late Visean |
Namurian A |
France |
Doubinger,J. et al. Schists (Massif Amoricain) |
1976 |
| details |
Nd |
|
France |
Alpern,B. Contribution to the palynological and petrographic study of French Coals. |
1959 |