| original |
Givetian |
Frasnian |
Canada(Arctic) |
Chi,B.I. et al. Biostratigraphy and taxonomy of Devonian Imegaspores, Arctic, Canada. |
1976 |
| details |
Late Devonian |
|
Iran |
Syooki,M.G. Miospores from Middle-Upper Devonian and Lower Permia, South Iran. |
1984 |
| details |
Frasnian |
Famennian |
Canada(NWT,Mackenzie) |
Hills,L.V. et al. Megaspores, Imperial Formation (Upper Devonian) Mountain River, District of MacKenzie |
1984 |
| details |
Frasnian |
|
Canada(NWT,Mackenzie) |
Braman,D.R. et al. Upper Devonian and Lower Carboniferous miospores, Western District of MacKenzie and Yukon Territory, Canada. |
1992 |