| details |
Early Frasnian |
Middle Frasnian |
Canada(NWT,Franklin) |
Chi,B.I. et al. Middle and Upper Devonian megaspores from the Cape terrace section on Western Melville Island, Arctic Canada. |
1975 |
| details |
Middle Frasnian |
Late Frasnian |
Canada(Arctic) |
Mayr,U. Stratigraphy and correlation of Lower Paleozoic Formations, subsurface of Bathurst Island and adjacent smaller islands, Canadian Arctic Archipelago. |
1980 |
| details |
Middle Givetian |
Late Frasnian |
Canada(Saskatchewan) |
Chi,B.I. et al. Middle and Upper Devonian megaspores from the Cape terrace section on Western Melville Island, Arctic Canada. |
1973 |
| details |
Givetian |
Frasnian |
Canada(NWT,Mackenzie) |
McGregor,D.C. et al. Appendix 1; Paleontology. (In: Subsurface geology of Pre-Mesozoic strata, Great Bear River Map area, District of MacKenzie-D.C.Pugh) |
1993 |
| original |
Frasnian |
Frasnian |
Canada(Arctic) |
Chi,B.I. et al. Biostratigraphy and taxonomy of Devonian Imegaspores, Arctic, Canada. |
1976 |
| details |
Frasnian |
Famennian |
Canada(NWT,Mackenzie) |
Hills,L.V. et al. Megaspores, Imperial Formation (Upper Devonian) Mountain River, District of MacKenzie |
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 |
Famennian |
Canada(NWT,Franklin) |
Hills,L.V. et al. Devonian megaspores from northern Banks Island, Arctic Canada |
1970 |
| details |
Frasnian |
Famennian |
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 |
Middle Frasnian |
Early Famennian |
Canada(Arctic) |
Kerr,J.W. Geology of Bathurst Island Group and Byam Martin Island, Arctic Canada. |
1974 |
| details |
Frasnian |
|
Canada(Arctic) |
Miall,A.D. Proterozoic and Paleozoic geology of Banks Island, Arctic Canada. |
1976 |
| original |
Frasnian |
|
Canada(Arctic) |
Chi,B.I. et al. Biostratigraphy and taxonomy of Devonian Imegaspores, Arctic, Canada. |
1976 |
| original |
Frasnian |
|
Canada(Arctic) |
Chi,B.I. et al. Biostratigraphy and taxonomy of Devonian Imegaspores, Arctic, Canada. |
1976 |
| original |
Frasnian |
|
Canada(Arctic) |
Chi,B.I. et al. Biostratigraphy and taxonomy of Devonian Imegaspores, Arctic, Canada. |
1976 |
| original |
Frasnian |
|
Canada(Arctic) |
Chi,B.I. et al. Biostratigraphy and taxonomy of Devonian Imegaspores, Arctic, Canada. |
1976 |
| details |
Famennian |
|
Canada(NWT,Mackenzie) |
Hills,L.V. et al. Megaspores, Imperial Formation (Upper Devonian) Mountain River, District of MacKenzie |
1984 |
| details |
Famennian |
|
Canada(NWT,Mackenzie) |
Hills,L.V. et al. Megaspores, Imperial Formation (Upper Devonian) Mountain River, District of MacKenzie |
1984 |