| details |
Westphalian B |
|
W.Germany(N.Rhine) |
Loose,F. Spores of the Bismarck Seam, 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 |
| details |
Visean |
Moscovian |
USSR(Ukrainian SSR) |
Ishchenko,A.M. et al. Megaspores of the Carboniferous age and their stratigraphic importance |
1962 |
| details |
Nd |
|
Nd |
Spinner,E. Contribution on the megaspore genus Tuberculatisporites (Ibrahim)Potonie and Kremp,1954. |
1968 |
| details |
Westphalian B |
|
Germany |
Braman,D.R. et al. The stratigraphic and geographic distribution of Carboniferous megaspores. |
1980 |