| details |
Early Frasnian |
Middle Tournaisian |
Canada(Yukon) |
Braman,D.R. et al. Upper Devonian-Lower Carboniferous miospore zonation of the Imperial and Tuttle Formations, Yukon and District of MacKenzie, Canada |
1984 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Frasnian |
|
USSR |
Andreeva,E.M. Acritarchs, spores and pollen of higher plants. (In: Devonian Systems. D.V.Nalivkin et al, editors) |
1973 |
| details |
Stephanian |
Permian |
Nd |
Alpern,B. Stratigraphic palynology of the Stephanian and Permian. |
1964 |