| details |
Westphalian B |
Westphalian C |
Netherlands |
Dijkstra,S.J. The stratigraphical value of megaspores |
1952 |
| details |
Westphalian B |
|
Belgium |
Dijkstra,S.J. Correlation of Coal Seams by megaspores |
1955 |
| details |
Westphalian B |
|
Netherlands |
Dijkstra,S.J. Correlation of Coal Seams by megaspores |
1955 |
| details |
Westphalian C |
Westphalian D |
Czechoslovakia |
KalibovЎ-KaiserovЎ,M. Paleontological and palynological investigation of Coal overlying beds in Masarykove Jubilejnim Coal Mine, (now the Coal Mine of Peace Defenders) Zbuchov (Plzin Coal Basin) |
1958 |
| details |
Westphalian C |
|
Netherlands |
Dijkstra,S.J. The megaspores of the Westphalian D and C. |
1955 |
| details |
Westphalian C |
|
Czechoslovakia |
Zerndt,J. Megaspores from the Westphalian and Stephanian in Bohemia. |
1937 |
| details |
Westphalian C |
|
W.Germany(N.Rhine) |
Potonie,R. et al. The sporae dispersae of the Ruhr Carboniferous, their morphography and stratigraphy with reviews of species of other areas. Part 1. |
1955 |