| original |
Frasnian |
|
Canada(NWT,Franklin) |
McGregor,D.C. Devonian spores from Melville Island, Canadian Arctic Archipelago. |
1960 |
| details |
Frasnian |
|
Canada |
Richardson,J.B. Report of Subgroup 13B on Devonian and Lower Carboniferous. |
1962 |
| details |
Late Frasnian |
Famennian |
Canada(NWT,Franklin) |
Hills,L.V. et al. Upper Devonian megaspores, northeastern Banks Island, NWT. |
1971 |
| details |
Middle Frasnian |
Late Frasnian |
Canada(Arctic) |
Kerr,J.W. Geology of Bathurst Island Group and Byam Martin Island, Arctic Canada. |
1974 |
| details |
Frasnian |
|
Canada(NWT,Mackenzie) |
Chi,B.I. et al. Stratigraphic and paleoenvironmental significance of Upper Devonian megaspores, Type Section of the Imperial Formation, Northwet Territories, Canada. |
1974 |
| details |
Givetian |
Frasnian |
Canada(Arctic) |
Chi,B.I. et al. Biostratigraphy and taxonomy of Devonian Imegaspores, Arctic, Canada. |
1976 |
| details |
Frasnian |
|
Canada(NWT,Franklin) |
Chi,B.I. et al. Biostratigraphy and taxonomy of Devonian Imegaspores, Arctic, Canada. |
1976 |
| details |
Early Frasnian |
|
USSR(Arkhangelsk Oblast) |
Medianik,S.I. Palynological characteristics of the Frasnian deposits of the Timan-Pechora Province. |
1981 |
| details |
Early Frasnian |
|
USSR(Komi ASSR) |
Medianik,S.I. The spore-bearing organs of the Lower Frasnian Archaeopteris from the Southern Timan Region |
1982 |