| original |
Middle Visean |
Late Visean |
Canada(NWT) |
Braman,D.R. et al. Palynology and paleoecology of the Mattson Formation, northwest Canada. |
1977 |
| details |
Visean |
|
Canada(Alberta) |
Utting,J. Palynological investigation of 29 core samples from the Stoddart Gropu (Lower Carboniferous) of Imperial Pan-American Aries (C-147706), Submitted by J.Barclay (Nts 84D5) |
1987 |
| details |
Late Tournaisian |
Visean |
Alaska |
Ravn,R.L. Miospores of the Kekiktuk Formation (Lower Carboniferous), Endicott Field Area, Alaska North Slope. |
1991 |