| details |
Frasnian |
|
Canada(Arctic) |
Chi,B.I. et al. Morphologic variation and stratigraphic significance of Triangulatisporites rootsii, Chaloner. |
1976 |
| details |
Frasnian |
|
Canada(Arctic) |
Chi,B.I. et al. Morphologic variation and stratigraphic significance of Triangulatisporites rootsii, Chaloner. |
1976 |
| original |
Frasnian |
|
Canada(Arctic) |
Chi,B.I. et al. Morphologic variation and stratigraphic significance of Triangulatisporites rootsii, Chaloner. |
1976 |
| original |
Frasnian |
|
Canada(Arctic) |
Chi,B.I. et al. Morphologic variation and stratigraphic significance of Triangulatisporites rootsii, Chaloner. |
1976 |
| original |
Frasnian |
|
Canada(Arctic) |
Chi,B.I. et al. Morphologic variation and stratigraphic significance of Triangulatisporites rootsii, Chaloner. |
1976 |
| original |
Frasnian |
|
Canada(Arctic) |
Chi,B.I. et al. Morphologic variation and stratigraphic significance of Triangulatisporites rootsii, Chaloner. |
1976 |
| original |
Frasnian |
Frasnian |
Canada(Arctic) |
Chi,B.I. et al. Biostratigraphy and taxonomy of Devonian Imegaspores, Arctic, Canada. |
1976 |
| 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 |
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 |
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 |
| 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 |
| details |
Frasnian |
|
Nd |
Scott,A.C. et al. Paleozoic spores and pollen. Chapter 18G Palaeozoic megaspores. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |