| details |
Middle Precambrian |
|
Canada(Ontario) |
Barghoorn,E.S. et al. Microorganisms from the Gunflint Chert. |
1965 |
| details |
Early Cambrian |
|
Canada(Yukon) |
Hofmann,H.J. Organic-walled microfossils from the Latest Proterozoic and Earliest Cambrian of the Wernecke Mountains, Yukon. |
1984 |
| original |
Late Precambrian |
Cambrian |
India(Rajasthan) |
Maithy,P.K. et al. Microbiota from Vindhyan Supergroup of the Karauli-Sapotra Region of North-East Rajasthan, India. |
1984 |
| details |
Vendian |
|
India(Madhya Pradesh) |
Maithy,P.K. et al. Upper Vindhyan biota and Precambrian/Cambrian bound. |
1997 |