| details |
Late Westphalian B |
Early Westphalian C |
Canada(Nova Scotia) |
Barss,M.S. Carboniferous and Permian spores of Canada. |
1967 |
| details |
Westphalian D |
|
Canada(Nova Scotia) |
Barss,M.S. Carboniferous and Permian spores of Canada. |
1967 |
| details |
Pennsylvanian |
|
Canada(New Brunswick) |
Hacquebard,P.A. et al. Palaeogeography and facies aspects of the Minto Coal Seam, New Brunswick, Canada. |
1970 |
| details |
Westphalian D |
|
Bulgaria |
Latcheva,J. et al. Two important palynological correlation markers in the Westphalian of Dobrudza Coal Basin |
1984 |