| original |
Early Carboniferous |
|
USSR(Siberia) |
Kovalenko,L.A. Materials for the investigation of spores and pollen of the Ostroysk Formation of Kuznetsk Basin |
1956 |
| details |
Middle Carboniferous |
|
USSR(Krasnoyarsk Kray) |
Andreeva,E.M. Correlation of Upper Paleozoic coal-bearing deposits of Tungur, Minusinsk and Kuznets Basin on data of spore-pollen analysis. |
1960 |
| details |
Early Permian |
|
USSR(Kazakh SSR) |
Andreeva,E.M. Spore and pollen assemblages in Upper Proterozoic and Paleozoic deposits of some Regions of the USSR |
1962 |