| details |
Westphalian A |
Westphalian C |
Poland |
Zoldani,Z. A taxonomic and stratigraphical study of the genus Valvisisporites from the Carboniferous of the Lublin District. |
1966 |
| details |
Middle Pennsylvanian |
Late Pennsylvanian |
Illinois |
Winslow,M.R. Upper Mississippian and Pennsylvanian megaspores and other plant microfossils from Illinois. |
1959 |
| details |
Westphalian B |
|
Germany |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| details |
Late Pennsylvanian |
|
Illinois |
Peppers,R.A. Palynology of the McLeansboro Group of Illinois and equivalent strata of Western Kentucky |
1961 |
| details |
Late Pennsylvanian |
|
Kentucky |
Peppers,R.A. Palynology of the McLeansboro Group of Illinois and equivalent strata of Western Kentucky |
1961 |
| details |
Westphalian B |
Westphalian C |
Czechoslovakia |
KalibovЎ,M. Megaspores of the Radnice Coal Measure zone of the Kladno-Rakovnik Coal Basin. |
1951 |