| details |
Middle Precambrian |
|
Canada(Ontario) |
Barghoorn,E.S. et al. Microorganisms of Middle Precambrian age from the Animikie Series, Ontario, Canada. |
1965 |
| details |
Vendian |
|
Greenland |
Vidal,G. et al. Acritarchs from the Proterozoic Thule Group, North-West Greenland. |
1980 |
| details |
Late Riphean |
Vendian |
Norway |
Vidal,G. Micropalaeontology and biostratigraphy of the Upper Proterozoic and Lower Cambrian sequence in East Finnmark, Northern Norway. |
1981 |
| details |
Monian |
|
Wales |
Peat,C.J. Comments on some of Britian's oldest microfossils |
1984 |
| details |
Torridonian |
|
Wales |
Peat,C.J. Comments on some of Britian's oldest microfossils |
1984 |
| details |
Middle Vendian |
|
Greenland |
Dawes,P.R. et al. Proterozoic age of the Thule Group-New evidence from microfossils |
1985 |
| details |
Vendian |
Early Cambrian |
Spitsbergen |
Knoll,A.H. et al. Micropaleontology across the Precambrian-Cambrian boundary in Spitsbergen |
1987 |