| details |
Coupavnian |
Upian |
USSR(Moscow) |
Byvsheva,T.V. et al. Palynological characteristics of the Lower Part of the Carboniferous of the Central Region of the Russian Platform |
1993 |
| details |
Tournaisian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| original |
Tournaisian |
|
USSR(Kalinin) |
Yushko,L.A. New species of microspores from Cherepetsk deposit of the Tournaisian Stage from the Moscow Basin. (In: Data on geology and useful minerals of the central regions of the European part of the USSR.) |
1960 |