| details |
Late Riphean |
|
USSR(Pre-Baltic) |
Timofeev,B.V. et al. Microfossils of the Precambrian, Cambrian and Ordovician. |
1976 |
| details |
Precambriam |
|
Canada(Ontario) |
Awramik,S.M. et al. The Gunflint Microbiota. |
1977 |
| details |
Middle Algonkian |
|
Canada(Ontario) |
Nautiyal,A.C. Stratigraphic and palaeogeographic significance of microplanktons, cyanophycean algae and fungal remains in metallic ore-bearing Algonkian sediment. |
1987 |
| details |
Riphean |
|
USSR(Siberia) |
Veis,A.F. Riphean and Vendian microfossils of the Ushur-Maya and Turukhan Regions of Siberia |
1988 |
| details |
Nd |
|
Nd |
German,T.N. et al. Systematic descriptions of microfossils. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |