| details |
Devonian |
|
USSR(Kirov) |
Shevstov,S.I. et al. Traces of Volcanic activity in the Devonian deposits of the northern part of the Kirov Region |
1961 |
| details |
Late Frasnian |
|
USSR(Baltic) |
Sorokin,V.S. Upper Frasnian Substage of the main Devonian Field. (In: Phanerozoic Stratigraphy of the Baltic States Paleontological Assemblages, Structure and Composition of Sediments. V.S.Sorokin, editor) |
1978 |
| details |
Early Frasnian |
|
USSR(Arkhangelsk Oblast) |
Kochetkov,O.S. Devonian geology of the Kanin Peninsula |
1963 |