| details |
Late Namurian A |
|
Czechoslovakia |
DybovЎ,S. et al. Microspore-Zones of the Carboniferous of the Ostrava-Karvina Region |
1957 |
| original |
Namurian A |
|
Poland |
DybovЎ,S. et al. Microspores of the Upper Silesian Coal Measures. |
1957 |
| details |
|
|
Poland |
DybovЎ,S. et al. Microspore zones in Upper Silesian productive Carboniferous. |
1957 |
| details |
Middle Namurian A |
|
Canada(British Columbia) |
Halbertsma,H.L. et al. The Mississippian-Pennsylvanian boundary from the Peace River area to the Williston Basin. |
1960 |
| details |
Middle Namurian A |
|
Canada(Alberta) |
Halbertsma,H.L. et al. The Mississippian-Pennsylvanian boundary from the Peace River area to the Williston Basin. |
1960 |
| details |
Middle Namurian A |
|
Montana |
Halbertsma,H.L. et al. The Mississippian-Pennsylvanian boundary from the Peace River area to the Williston Basin. |
1960 |
| details |
Middle Namurian A |
|
North Dakota |
Halbertsma,H.L. et al. The Mississippian-Pennsylvanian boundary from the Peace River area to the Williston Basin. |
1960 |
| details |
Carboniferous |
|
Poland |
Jachowicz,A. Flora of the Carboniferous:Microflora |
1972 |