| original |
Early Permian |
Late Permian |
USSR(Pre-Urals) |
Lyuber,A.A. et al. Atlas of microspores and pollen of the Paleozoic of the USSR. |
1941 |
| details |
Permian |
|
USSR(Urals) |
Bolkhovitina,N.A. Pollen of Conifers in Mesozoic deposits and its value for stratigraphy. |
1952 |
| details |
Kungurian |
Kazanian |
Europe |
Hart,G.F. A review of the classification and distribution of the Permian miospore-Disaccate Striatiti. |
1964 |
| details |
Early Permian |
Late Permian |
USSR(Pre-Urals) |
Hart,G.F. A review of the classification and distribution of the Permian miospore-Disaccate Striatiti. |
1964 |
| details |
Nd |
|
Nd |
Hart,G.F. The systematics and distribution of Permian miospores. |
1965 |
| details |
Nd |
|
Nd |
Efremova,G.D. A spore-pollen assemblage as found in the Kungurian deposits of the Western Primugodzhare. (In: Fossil Spores and Pollen of Plants and their Significance for their Stratigraphic Subdivivision of Oil and Gas Bearing Series of Precambrian, Paleozoic and Mesozoic rocks in the European and Central Asian Regions of the USSR. S.V.Semikhatovoi, V.P.Grichuka, and K.A.Bolkhovitina, editors) |
1967 |