| original |
Visean |
|
Spitsbergen |
Birkenmajer,K. et al. Lower Carboniferous age of the so-called Wijde Bay series in Hornsund, Vestspitsbergen |
1962 |
| details |
Early Visean |
|
Spitsbergen |
Birkenmajer,K. Devonian, Carboniferous and Permian Formation of Hornsund, Vestspitsbergen. |
1964 |
| details |
Early Carboniferous |
|
Spitsbergen |
Dibner,A.F. The stratigraphy of Anthracite Deposits of Spitsbergen from palynoligic data. (In: Geology of the Sedimentary Mantle of the Spitsbergen Archipelago. A.A.Krasilshchikov and M.N.Mitzaur, editors) |
1986 |