| details |
Late Visean |
Early Namurian |
Oklahoma |
Zwan,C.J.Van Der et al. Climatic change during the Lower Carboniferous in Euramerica based on multivarative statistical analysis of palynological data |
1985 |
| details |
Late Tournaisian |
Visean |
Spitsbergen |
Zwan,C.J.Van Der et al. Climatic change during the Lower Carboniferous in Euramerica based on multivarative statistical analysis of palynological data |
1985 |
| details |
Late Tournaisian |
Visean |
Canada |
Zwan,C.J.Van Der et al. Climatic change during the Lower Carboniferous in Euramerica based on multivarative statistical analysis of palynological data |
1985 |
| details |
Late Carboniferous |
|
Germany |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |