| details |
Early Devonian |
|
USSR(Russian Platform) |
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 |
Late Eifelian |
Early Givetian |
USSR(Baltic) |
Vaitekunene,G.K. Spore complexes of the Pyarnu and Narova horizons in the southern part of the Balticum. (In:-Palynological Researches in the Baltic Soviet Republics. T.D.Bartosh, editor) |
1971 |
| original |
Frasnian |
|
USSR(European) |
Sergeyeva,L.A. et al. Upper Devonian microphytofossils of the Dnepr-Donets Depression |
1979 |