| details |
Westphalian C |
|
Germany(Rhineland) |
Wicher,C.A. IV. Spore forms in the Flame Coal of the Ruhr area |
1934 |
| details |
Nd |
|
Nd |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| 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 |
| original |
Early Cenomanian |
|
France(Aisne) |
Firtion,F. The Lower Cenomanian of Nouvion-en-Thi©rache -a micropaleontological examination. |
1952 |
| details |
Early Cenomanian |
|
France |
Durand,S. Pollen analysis of Upper Cretaceous formations in France. |
1959 |
| details |
Middle Devonian |
Early Carboniferous |
W.Germany(N.Rhine) |
Brelie,G.Von Der The Lower Cretaceous of northern Sauderland |
1964 |