| details |
Givetian |
|
USSR(European) |
Filimonova,A.B. Spore complexes of the Middle and Upper Devonian boundary Layers in the Volga-Ural Province. |
1957 |
| original |
Givetian |
|
USSR(European) |
Raskatova,L.G. Middle and Upper Devonian spore-pollen complexes of the southeastern part of the Central Devonian Field. |
1969 |
| details |
Givetian |
|
USSR(Russian Platform) |
Arkhangelskaya,A.D. et al. A brief palynological characterization of Middle Devonian and the Lower Part of Upper Devonian. (In: Devonian Deposits of the Volga-Ural Oil and Gas Bearing Region. A.I.Lyshenko and I.G.Gassanova, editors) |
1970 |
| details |
Late Eifelian |
Early Frasnian |
USSR(Russian Platform) |
Araslanova,R.M. New data on the correlation of the lower horizons of the Middle Devonian in eastern and central regions of the Russian Platform. (In: Scientific Substantiation Trends Methods Prospecting Exploration Petroleum Natural Gas within Kama Region Perm. S.A.Shivkov, editor) |
1971 |
| details |
Eifelian |
|
USSR(Russian Platform) |
Arkhangelskaya,A.D. Palynological characteristics of the Middle Devonian Lower horizons in the eastern part of the Russian Platform. |
1972 |