| details |
Middle Precambrian |
|
Canada(Ontario) |
Barghoorn,E.S. et al. Microorganisms from the Gunflint Chert. |
1965 |
| details |
Early Proterozoic |
|
China(Liaoning) |
Yin,L. Microflora from the Ansham Group and the Liaohe Group in Eaetern Liaoning with its stratigraphic significance. |
1979 |
| details |
Late Riphean |
|
USSR(Urals) |
Yankauskas,T.V. Riphean microfossils of the Southern Urals. (In: Stratotype of Riphean Paleontology Paleomagnetism. B.M.Keller, editor) |
1982 |
| 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 |