| 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 |
Devonian |
Early Carboniferous |
USSR(Yaroslav) |
Bagdasaryan,L.L. The significance of microphytofossils in the solving of some problems in petroleum geology. (In: Mikrofitofossilii v neftyanoi geologii. N. A. Timoshina, editor) |
1980 |
| details |
Devonian |
Carboniferous |
USSR(Ukrainian SSR) |
Bagdasaryan,L.L. Results of micropalaeophytological investigations of oils and stratum waters. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) |
1973 |