details |
Givetian |
Frasnian |
Canada(Arctic) |
McGregor,D.C. Spores and the Middle-Upper Devonian boundary. |
1981 |
details |
Early Frasnian |
Middle Frasnian |
Canada(Arctic) |
Mayr,U. Stratigraphy and correlation of Lower Paleozoic Formations, subsurface of Bathurst Island and adjacent smaller islands, Canadian Arctic Archipelago. |
1980 |
original |
Late Givetian |
Early Frasnian |
Canada(Arctic) |
McGregor,D.C. et al. Devonian spores and conodonts of Melville and Bathurst Island, District of Franklin. |
1972 |
original |
Givetian |
Frasnian |
Canada(NWT,Franklin) |
McGregor,D.C. Devonian spores of the Queen Elizabeth Islands, Northwest Territories |
1970 |
details |
Givetian |
|
Canada(NWT,Mackenzie) |
McGregor,D.C. Devonian miospores of N.America. |
1979 |
details |
Nd |
|
Canada(NWT,Mackenzie) |
Richardson,J.B. et al. Silurian and Devonian spore zones of the Old Red Sandstone continent and adjacent regions. |
1986 |
details |
Givetian |
Early 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 |
Nd |
|
Canada(NWT,Mackenzie) |
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 |
Givetian |
|
Europe |
McGregor,D.C. Spores in Devonian stratigraphical correlation. (In: The Devonian System. M.R. House et al, editors) |
1979 |
details |
Givetian |
Frasnian |
Nd |
Richardson,J.B. et al. Silurian and Devonian spore zones of the Old Red Sandstone continent and adjacent regions. |
1986 |
details |
Late Givetian |
Early Frasnian |
North America |
McGregor,D.C. Devonian miospores of N.America. |
1979 |
details |
Givetian |
|
USA |
McGregor,D.C. Spores in Devonian stratigraphical correlation. (In: The Devonian System. M.R. House et al, editors) |
1979 |
details |
Early Frasnian |
|
USSR(Arkhangelsk Oblast) |
Yalysheva,A.A. The age of the Timan Bauxite deposits according to palynological data. (In: Paleomikrofitologicheskie issledovaniya dlya tselei stratigrafii. L.A. Panova, editor.) |
1980 |
original |
Givetian |
|
USSR(Bashkir ASSR) |
Chibrikova,E.V. Spores from Devonian and older deposits of Bashkir |
1959 |
details |
Givetian |
|
USSR(Bashkir ASSR) |
Chibrikova,E.V. Stratigraphy of Devonian and older Paleozoic deposits of the Southern Urals and the Pre-Urals (According to plant Microfssils). |
1977 |
details |
Givetian |
Frasnian |
USSR(European) |
McGregor,D.C. Spores and the Middle-Upper Devonian boundary. |
1981 |