| details |
Early Devonian |
Middle Devonian |
USSR(Azerbaijan SSR) |
Tilina-Stanichnikova,M.S. Discovery of Devonian spores in deposits beneath the Faunistically characterized Devonian in some Regions of Second Baku. |
1965 |
| details |
Famennian |
|
USSR(Urals) |
Dyupina,G.V. Spores from the Famennian deposits of the Urals. |
1961 |
| original |
Frasnian |
|
USSR(Russian Platform) |
Naumova,S.N. Spore-pollen complexes of the Upper Devonian of the Russian Platform and their significance for stratigraphy |
1953 |
| original |
Early Famennian |
|
USSR(Russian Platform) |
Naumova,S.N. Spore-pollen complexes of the Upper Devonian of the Russian Platform and their significance for stratigraphy |
1953 |