| original |
Givetian |
|
USSR(Bashkir ASSR) |
Chibrikova,E.V. Spores from Devonian and older deposits of Bashkir |
1959 |
| details |
Givetian |
|
USSR(Bashkir ASSR) |
Andreeva,E.M. et al. Palaeopalynology. (Three Volumes: Volume I: Methods. Volume II: Complexes of palynomorphs of the Precambrian-Holocene of the USSR. Volume III: Figures and Plates. Editor-I.M. Pokrovskaya) |
1966 |
| details |
Givetian |
|
USSR(Bashkir ASSR) |
Chibrikova,E.V. Stratigraphy of Devonian and older Paleozoic deposits of the Southern Urals and the Pre-Urals (According to plant Microfssils). |
1977 |