| details |
Early Eifelian |
|
Canada(Arctic) |
Arkhangelskaya,A.D. et al. Correlation of the Lower Middle Devonian Elenisporis biformis spore Subzone in Arctic Canada and the USSR. |
1990 |
| details |
Late Emsian |
Early Eifelian |
Canada(Arctic) |
Uyeno,T.T. Biostratigraphy and conodont faunas of Upper Ordovician through Middle Devonian Rocks, eastern Arctic Archipelago |
1990 |
| details |
Middle Emsian |
|
Canada(Arctic) |
Uyeno,T.T. Biostratigraphy and conodont faunas of Upper Ordovician through Middle Devonian Rocks, eastern Arctic Archipelago |
1990 |