| details |
Early Riphean |
|
USSR(Yakut ASSR) |
Lopukhin,A.S. Acritarchs of the Proterozoic and Early Paleozoic of Tyan-Shan. (In: Palynology of Proterophyte and Palaeophyte.S.N.Naumova, editor) |
1974 |
| details |
Vendian |
|
USSR(Russian Platform) |
Shepeleva,E.D. Stratigraphic Division of Vendian deposits in the Central Russian Platform, according to acritarch finds. (In: Microfossils USSR. T.F.Vozzhennikova et al, editors) |
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 |