| original |
Vendian |
|
USSR |
Naumova,S.N. Zonal assemblages of Precambrian and Lower Cambrian plant microfossils of Eurasia and their stratigraphic importance. |
1968 |
| details |
Early Vendian |
|
USSR(Kirghiz SSR) |
Nikitina,T.M. et al. Acritarchs from "Lower Dolomites" of the Maly Karatau. (In: Dispersed Remains of Plant Fossils of Kirghizia.V.G.Korolev, editor) |
1971 |
| details |
Early Devonian |
|
USSR(Bashkir ASSR) |
Chepikova,I.K. Stratigraphic position of the Upper Bavly Beds in the Volga-Ural Region. |
1971 |
| details |
Early Devonian |
|
USSR(Permsk Oblast) |
Chepikova,I.K. Stratigraphic position of the Upper Bavly Beds in the Volga-Ural Region. |
1971 |
| details |
Early Paleozoic |
|
USSR(Vologda) |
Batanova,G.P. et al. Age of Pre-Middle Devonian sediments of the Volgograd District. |
1972 |
| details |
Middle Riphean |
Late Riphean |
USSR(Yakut ASSR) |
Lopukhin,A.S. Riphean microfossils of north-eastern Pri-Anabar (Lower Lena River, Chekurovka Village). |
1974 |
| details |
Late Precambrian |
Early Cambrian |
USSR |
Naumova,S.N. Plant microfossils of Precambrian and Lower Cambrian of Eurasia and their significance for stratigraphy. |
1974 |
| details |
Early Cambrian |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |