| details |
Famennian |
|
Canada(NWT,Franklin) |
McGregor,D.C. Composition and range of some Devonian spore assemblages of Canada |
1967 |
| details |
Late Devonian |
|
USSR(Ukrainian SSR) |
Sergeyeva,L.A. et al. Establishment of the age of the Paleozoic Salts in the South-Eastern Part of the Dnieper-Donets Depression according to the spore-pollen analysis. |
1964 |
| details |
Frasnian |
|
USSR(Far East) |
Tuzova,L.S. Stratigraphic significance of the Devonian spores and pollen of eastern Tartary |
1959 |
| original |
Frasnian |
|
USSR(Russian Platform) |
Naumova,S.N. Spore-pollen complexes of the Upper Devonian of the Russian Platform and their significance for stratigraphy |
1953 |