| original |
Frasnian |
|
Canada(NWT,Mackenzie) |
Braman,D.R. et al. The spore genus Archaeoperisaccus and its occurrence within the Upper Devonian Imperial Formation, District of MacKenzie, Canada. |
1985 |
| details |
Frasnian |
|
Canada(Arctic) |
McGregor,D.C. et al. Canadian and Australian Devonian spores: zonation and correlation |
1992 |
| 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 |
| details |
Late Frasnian |
|
Canada(Arctic) |
Barnes,C.R. et al. Appendix 3A: Palaeontology. (In: The Geology of Devon Island North 76', Canadian Arctic Archipelago (Western part of Cardigan Strait area, Prince Alfred Bay map area and parts of adjacent maps: NT: 59A, B.C. and 69A, D. U.Mayr et al, editors) |
1998 |