| original |
Frasnian |
|
USSR(Latvian SSR) |
Ozolina,V.R. The spore-pollen Spectrum of Frasnian Stage deposits in the Alanda borehole. |
1961 |
| details |
Late Frasnian |
|
USSR(Latvian SSR) |
Ozolina,V.R. Spore-pollen spectrum of Frasnian age of Upper Devonian, Latvian SSR. |
1963 |
| details |
Frasnian |
|
USSR(Kazakh SSR) |
Mikhailova,N.I. About spores and pollen of Frasnian deposits of the Ore-bearing Altay |
1966 |
| details |
Late Frasnian |
|
USSR(E.Kazakh Oblast) |
Mikhailova,N.I. Spore-pollen assemblages of Frasnian deposits of Rudny Altai |
1967 |