| details |
Early Frasnian |
|
USSR(Urals) |
Chibrikova,E.V. Boundaries and subdivisions of the Middle Devonian based on palynological data. (In: Middle Devonian of the USSR; Its Boundaries and Stage Subdivision. M.A. Kamaletdinova and M.A.Kzhonskitskaya, editors) |
1985 |
| 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 |
| details |
Early Famennian |
|
USSR(Ukrainian SSR) |
Sorokina,N.L. Miospore assemblages of Devonian and Lower Tournaisian deposits of the Southeast Dnieper-Donets Depression |
1968 |
| 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 |