| details |
Late Riphean |
|
USSR(Kalmyr ASSR) |
German,T.N. et al. Systematic descriptions of microfossils. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |
| details |
Vendian |
|
Kazakstan |
Sergeeva,V.N. Silicified microfossils in the Precambrian of the Urals and Kazakhstan and their biostratigraphy potential |
1991 |
| details |
Vendian |
|
Russia(Urals) |
Sergeeva,V.N. Silicified microfossils in the Precambrian of the Urals and Kazakhstan and their biostratigraphy potential |
1991 |
| details |
Middle Riphean |
Late Riphean |
Russia(Siberia) |
Sergeev,V.N. et al. Paleobiology of the Mesoproterozoic-Neoproterozoic transition: Sukhaya Tunguska Formation, Turukhansk Uplift, Siberia |
1997 |
| details |
Middle Rhaetian |
Late Rhaetian |
Russia(Siberia) |
Sergeev,V.N. et al. Paleobiology of the Mesoproterozoic-Neoproterozoic transition: Sukhaya Tunguska Formation, Turukhansk Uplift, Siberia |
1997 |
| details |
Middle Riphean |
Late Riphean |
Russia(Siberia) |
Sergeeva,V.N. Silicified microfossils from transitional Meso-Neoproterozoic deposits of the Turukhansk Uplift, Siberia. |
1999 |