| details |
Westphalian B |
Westphalian C |
Czechoslovakia |
KalibovЎ,M. Megaspores of the Radnice Coal Measure zone of the Kladno-Rakovnik Coal Basin. |
1951 |
| details |
Dinantian |
Namurian |
England(Hampshire) |
Dijkstra,S.J. Carboniferous megaspores in Tertiary and Quaternary deposits of S.E.England. |
1950 |
| details |
Early Pennsylvanian |
|
Michigan |
Arnold,C.A. Megaspores from the Michigan Coal Basin. |
1950 |
| details |
Late Pottsville |
|
West Virginia |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
| details |
Late Pottsville |
|
West Virginia |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
| details |
Late Pottsville |
|
Kentucky |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
| details |
Late Pottsville |
|
Kentucky |
Cross,A.T. Spore floras of the Pennsylvanian of West Virginia and Kentucky |
1947 |
| details |
Westphalian A |
Westphalian C |
Netherlands |
Dijkstra,S.J. et al. A monographic revision of Carboniferous megaspores with special consideration to South Limburg, (Netherlands). |
1946 |
| details |
Dinantian |
Westphalian B |
Poland |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| details |
Westphalian |
|
W.Germany(Saarland) |
Zerndt,J. Megaspores of the Saar Carboniferous |
1940 |
| details |
Carboniferous |
|
Poland |
Zerndt,J. Megaspores of the Polish Coal Basin. Part 2. the Marginal Group. |
1937 |
| details |
Carboniferous |
|
Poland |
Zerndt,J. Megaspores from the Polish Coal Basin. first Part. |
1934 |
| details |
Westphalian C |
|
Germany(Rhineland) |
Wicher,C.A. IV. Spore forms in the Flame Coal of the Ruhr area |
1934 |
| original |
Late Carboniferous |
|
W.Germany(N.Rhine) |
Stach,E. et al. Spores in the Flame, Gasflame and Gascoal of the Ruhr Coal. |
1931 |