| details |
Westphalian A |
|
Poland |
Nowak,G.J. et al. Peat-forming environments of Westphalian A coal seams from the Lower Silesian Coal Basin of SW Poland based on petrographic and palynologic data. |
1999 |
| details |
Late Westphalian B |
|
Kentucky |
Eble,C.F. et al. Compositional variations in the Fire Clay Coal Bed of Eastern Kentucky: Geochemistry, petrography, palynology and paleoecology. |
1999 |
| details |
Early Bolsovian |
|
Canada(New Brunswick) |
Kalkreuth,W.D. et al. Petrology, palynology, coal facies, and depositional environments of an Upper Carboniferous coal seam, Minto Coalfield, New Brunswick, Canada. |
2000 |
| details |
Westphalian A |
|
Canada(Nova Scotia) |
Hower,J.C. et al. Metalliferous coals of the Westphalian A Joggins Formation, Cumberland Basin, Nova Scotia, Canada: petrology, geochemistry, and palynology. |
2000 |