| details |
Givetian |
|
USSR(European) |
Filimonova,A.B. Spore complexes of the Middle and Upper Devonian boundary Layers in the Volga-Ural Province. |
1957 |
| details |
Middle Devonian |
|
USSR(Urals) |
Filimonova,A.B. The stratigraphic role of spores in terrigenous deposits of the Middle Devonian Staro-Oskol and Mullinsk Clastic strata in the Volga-Ural Province |
1962 |
| details |
Middle Devonian |
|
USSR(European) |
Iilimonova,A.B. Stratigraphic importance of spores from Middle Devonian Staro-Oskol and Mullinsk Clastic strata in the Volga-Ural Province. |
1962 |