| details |
Middle Frasnian |
|
USSR(Latvian SSR) |
Ozolina,V.R. Spore-pollen spectrum of Frasnian age of Upper Devonian, Latvian SSR. |
1963 |
| details |
Caradocian |
|
Algeria |
Deunff,J. et al. Palynoplanktonic correlation in the Cambro-Ordovician of the Sahara |
1961 |
| details |
Frasnian |
|
USSR(Latvian SSR) |
Ozolina,V.R. The spore-pollen Spectrum of Frasnian Stage deposits in the Alanda borehole. |
1961 |
| details |
Frasnian |
|
USSR(Latvian SSR) |
Ozolina,V.R. Pollen and spore analysis of the Frasnian age of Upper Devonian Latvian SSR. |
1960 |
| details |
Frasnian |
|
USSR(Latvian SSR) |
Ozolina,V.R. Spore and pollen assemblages of the Upper Devonian Ogrskiy Suite of Lativia. |
1955 |
| 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 |