| original |
Early Gothlandian |
|
USSR(Leningrad) |
Naumova,S.N. Spores of the Lower Silurian. |
1950 |
| original |
Early Gothlandian |
|
USSR(Estonian SSR) |
Naumova,S.N. Spores of the Lower Silurian. |
1950 |
| details |
Middle Cambrian |
|
USSR(Russian Platform) |
Andreeva,E.M. Spore complexes of the Upper Proterozoic and Lower Paleozoic of the Russian Platform. |
1960 |
| details |
Early Devonian |
|
USSR(Yablonov Khrebet) |
Kozerenko,V.N. et al. New data on the Lower Paleozoic deposits of East Transbaikal |
1960 |
| details |
Ordovician |
Silurian |
USSR(Yablonov Khrebet) |
Kozerenko,V.N. et al. New data on the Lower Paleozoic deposits of East Transbaikal |
1960 |
| details |
Middle Cambrian |
|
USSR(Baltic) |
Downie,C. et al. Bibliography and index of fossil dinoflagellates and acritarchs. |
1965 |
| details |
Tremadocian |
|
USSR(Russian Platform) |
Umnova,N.I. Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic |
1975 |
| details |
Early Gothlandian |
|
USSR(Estonian SSR) |
Umnova,N.I. Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic |
1975 |
| details |
Late Gothlandian |
|
USSR(Estonian SSR) |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |