| details |
Frasnian |
|
W.Germany(Rhineland) |
Sandberg,C.A. et al. Comparison between conodont zonations and spore assemblages at the Devonian-Carboniferous boundary in the Western and Central United States and in Europe |
1972 |
| details |
Frasnian |
|
Montana |
Sandberg,C.A. et al. Comparison between conodont zonations and spore assemblages at the Devonian-Carboniferous boundary in the Western and Central United States and in Europe |
1972 |
| details |
Devonian |
|
Nd |
Kedves,M. Trends and problems of the research of fossil spores and pollen grains |
1988 |
| details |
Frasnian |
|
China(Yunnan) |
Lu,L. Upper Devonian (Frasnian) spores from Sichuan and Yunnan, China. |
1980 |