| original |
Early Precambrian |
|
South Africa |
Schopf,J.W. et al. Alga-like fossils from the Early Precambrian of South Africa. |
1967 |
| details |
Nd |
|
Nd |
Rudavskaya,V.A. Systematic principles of sphaeromorphs. (In:Mikrofitofossilii Proterozoya i Rannego Paleozoya SSSR. B.V.Timofeev, editor) |
1974 |
| details |
|
|
South Africa |
Lopukhin,A.S. et al. The Oldest microfossils of the Precambrian of South Africa and North America-The comparative investigation in Thin Sectons and preparations. |
1979 |
| details |
|
|
North America |
Lopukhin,A.S. et al. The Oldest microfossils of the Precambrian of South Africa and North America-The comparative investigation in Thin Sectons and preparations. |
1979 |
| details |
Middle Algonkian |
|
India(Karnataka) |
Nautiyal,A.C. Stratigraphic and palaeogeographic significance of microplanktons, cyanophycean algae and fungal remains in metallic ore-bearing Algonkian sediment. |
1987 |