| original |
Frasnian |
|
USSR(Stalingrad) |
Arkhangelskaya,A.D. A new genus and some species of spores from the Frasnian Stage of Volgograd Oblast. |
1987 |
| details |
Early Frasnian |
Middle Frasnian |
USSR(Russian Platform) |
Avkhimovich,V.I. et al. Middle and Upper Devonian miospore zonation of eastern Europe. |
1993 |
| details |
Late Frasnian |
|
Russia(Komi) |
Obukhovskaya,T.G. et al. Miospores from the Frasnian - Famennian boundary deposits in Eastern Europe (the Pripyat Depression, Belarus and the Timan - Pechora Province, Russia) and comparison with Western Europe (Northern France). |
2000 |