| details |
Early Devonian |
|
USSR(Kamchatka Oblast) |
Sivertseva,I.A. et al. Finds of Paleozoic spores in metamorphosed Kamchatkan Beds |
1974 |
| details |
Frasnian |
|
USSR |
Raskatova,L.G. On the question of paleofloristic regionalism in the Devonian, on palynological data. (In: Life on Ancient Continents: Its Establishment and Expansion.) |
1981 |
| details |
Givetian |
|
USSR(Komi ASSR) |
Yalysheva,A.A. Palynological bases for the Middle Devonian age of Sublaterite ore-bearing formations of Timan. (In: Spores and pollen of Phanerozoic deposits. L.A. Panova et al, editors) |
1984 |
| details |
Early Famennian |
|
USSR(E.Kazakh Oblast) |
Ponomarev,E.S. New data on the age of Ore-Bearing Strata of the Nikolayev deposit, Rudny Altai. |
1988 |