| details |
Famennian |
|
Canada(Arctic) |
Chi,B.I. et al. Biostratigraphy and taxonomy of Devonian Imegaspores, Arctic, Canada. |
1976 |
| details |
Late Frasnian |
Famennian |
Canada(NWT,Franklin) |
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 |
Late Frasnian |
Early Famennian |
Canada |
McGregor,D.C. et al. Canadian and Australian Devonian spores: zonation and correlation |
1992 |
| details |
Late Givetian |
Early Frasnian |
Australia |
McGregor,D.C. et al. Canadian and Australian Devonian spores: zonation and correlation |
1992 |
| details |
Famennian |
|
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 |