| details |
Late Permian |
|
USSR(Cis-Urals) |
Maheshwari,H.K. et al. Cladostrobus and the systematics of Cordaitalean Leaves. |
1975 |
| details |
Late Permian |
|
USSR(Krasnoyarsk Kray) |
Gurevich,A.B. et al. Stratigraphy of Upper Paleozoic Coal bearing Depo Sits of the northeastern part of the Tunguska Basin |
1984 |
| details |
Kazanian |
|
USSR(Leningrad) |
Faddeeva,I.Z. Palynostratigraphy of Permian deposits. (In: Practical Palynostratigraphy. L.A. Panova et al, editors) |
1990 |
| details |
Tatarian |
|
Russian Platform |
Gomankov,A.V. et al. Tatarian palynology of the Russian Platform; A review. |
1998 |