| details |
Westphalian C |
|
Germany(Rhineland) |
Spinner,E. Contribution on the megaspore genus Tuberculatisporites (Ibrahim)Potonie and Kremp,1954. |
1968 |
| details |
Visean |
Moscovian |
USSR(Ukrainian SSR) |
Ishchenko,A.M. et al. Megaspores of the Carboniferous age and their stratigraphic importance |
1962 |
| 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 |
| details |
Westphalian C |
|
Germany(Rhineland) |
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 |
| details |
Early Westphalian C |
|
Poland |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| original |
Westphalian C |
|
Germany(Rhineland) |
Wicher,C.A. IV. Spore forms in the Flame Coal of the Ruhr area |
1934 |