| original |
Middle Precambrian |
|
Canada(Ontario) |
Barghoorn,E.S. et al. Microorganisms from the Gunflint Chert. |
1965 |
| details |
Algonkian |
|
Czechoslovakia |
VavrdovЎ,M. Microorganisms (Acritarcha), from Proterozoic Lydites of Bohemia. |
1966 |
| details |
Precambriam |
|
Canada(Ontario) |
Schopf,J.W. Organically preserved Precambrian microorganisms. |
1970 |
| details |
Middle Precambrian |
|
Canada(Ontario) |
Schopf,J.W. Precambrian micro-organisms and evolutionary events, prior to the origin of vascular plants. |
1970 |
| details |
Precambriam |
|
Canada(Ontario) |
Hofmann,H.J. Polygonomorph acritarch from the Gunflint Formation (Precambrian), Ontario. |
1971 |
| details |
Precambriam |
|
Canada(Ontario) |
Awramik,S.M. et al. The Gunflint Microbiota. |
1977 |
| details |
|
|
South Africa |
Tappan,H. The Paleobiology of Plant Protists. |
1980 |
| details |
Early Proterozoic |
|
Canada(Ontario) |
Strother,P.K. et al. Observations on the genus Huroniospora, Barghoorni, implications for paleoecology of the Gunflint Microbiota |
1987 |
| 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 |