| details |
Stephanian |
|
USSR(Kazakh SSR) |
Lyuber,A.A. Atlas of spores and pollen of the Paleozoic deposits of Kazakhstan. |
1955 |
| details |
Permian |
|
USSR(Siberia) |
Dibner,A.F. Cordaitales pollen from Angaraland. |
1971 |
| details |
Early Triassic |
|
USSR(Siberia) |
Odintsova,M.M. Spore-pollen complexes from the Tuffaceous deposits of the central part of the Siberian Platform and the Nearshore marine beds of the Indsk Layers of northern Pri-Verkhoyask. |
1969 |
| details |
Early Permian |
|
USSR(Urals) |
Abramova,S.A. et al. Palynological investigations of Upper Kama's potassium deposits, underlying Kungurian Salt Layers. |
1960 |