| details |
Middle Famennian |
Late Famennian |
USSR(Russian Platform) |
Avkhimovich,V.I. et al. Middle and Upper Devonian miospore zonation of eastern Europe. |
1993 |
| details |
Optukhian |
|
USSR(Moscow) |
Alekseev,A.S. et al. The Devonian and Carboniferous of the Moscow Syneclise (Russian Platform): Stratigraphy and sea-level changes |
1996 |
| details |
Late Famennian |
|
Brazil(Amazonas) |
Loboziak,S. et al. Palynological evaluation of the Famennian Protosalvinia (Foerst zone in the Amazon Basin, northern Brazil: A preliminary study |
1997 |