| original |
Tournaisian |
|
USSR(Belorussian SSR) |
Kedo,G.I. Tournaisian spores of the Pripyat Depression and their stratigraphic significance. |
1963 |
| details |
Frasnian |
|
USSR(Komi ASSR) |
Arkhangelskaya,A.D. New spore taxa from the Frasnian of the European USSR |
1988 |
| original |
Frasnian |
|
USSR(Stalingrad) |
Arkhangelskaya,A.D. New spore taxa from the Frasnian of the European USSR |
1988 |
| details |
Middle Frasnian |
|
USSR(Russian Platform) |
Avkhimovich,V.I. et al. Middle and Upper Devonian miospore zonation of eastern Europe. |
1993 |