| details |
Permian |
|
USSR(Kemerovskaya) |
Dryagina,L.L. Spore-pollen complexes, (Lower Permian - Upper Permian). (In: Biostratigraphy of the Paleozoic of the Sayano-Altai Mining Region.Vol. III. Upper Paleozoic. L.L.Khalfina, editor) |
1962 |
| details |
Permian |
|
Argentina(Salta) |
Medvedeva,A.M. Stratigraphic subdivision of lower horizons of the Tunguska Series by spore-pollen analysis. |
1960 |
| details |
Late Permian |
|
USSR(European) |
Dryagina,L.L. Palynological characteristics of the Rrunak key section of Upper Permian deposits of the Kolchuginsk Series in the Uznetsk Basin. |
1980 |