| details |
Middle Visean |
Late Visean |
Alaska |
Ravn,R.L. Miospores of the Kekiktuk Formation (Lower Carboniferous), Endicott Field Area, Alaska North Slope. |
1991 |
| details |
Nd |
|
Nd |
Ravn,R.L. Miospores of the Kekiktuk Formation (Lower Carboniferous), Endicott Field Area, Alaska North Slope. |
1991 |
| details |
Visean |
Westphalian A |
Greenland |
Vigran,J.O. et al. Stratigraphy and depositional evolution of the Uppermost Devonian-Carboniferous, (Tournaisian - Westphalian), non-marine deposits in northeast Greenland. |
1999 |