| original |
Early Eifelian |
|
USSR(Urals) |
Chibrikova,E.V. Plant microfossils of the Southern Urals and Preurals (From Silurian and Devonian deposits). |
1972 |
| original |
Early Eifelian |
|
USSR(Pre-Urals) |
Chibrikova,E.V. Plant microfossils of the Southern Urals and Preurals (From Silurian and Devonian deposits). |
1972 |
| details |
Early Emsian |
|
USSR(Kazakh SSR) |
Kozlov,M.S. et al. Stratigraphic separation of Devonian deposits of the Berezovsk-Belousovsk Mining area |
1986 |
| details |
Eifelian |
|
USSR(Nenets Nat.Okrug) |
Menner,V.V. et al. Middle Devonian and Lower Frasnian deposits of northern Timan |
1986 |