original |
Late Proterozoic |
|
Sweden |
Vidal,G. Late Precambrian microfossils from the Visingso Beds in Southern Sweden. |
1976 |
original |
Late Riphean |
Vendian |
Greenland |
Vidal,G. Acritarchs from the Upper Proterozoic and Lower Cambrian of East Greenland |
1979 |
original |
Late Riphean |
Early Vendian |
Utah |
Vidal,G. et al. Microbiotas from the Late Proterozoic Chuar Group (Northern Arizona) and the Uinta Mountain Group (Utah) and their chronostratigraphic implications |
1985 |
original |
Late Riphean |
Early Vendian |
Arizona |
Vidal,G. et al. Microbiotas from the Late Proterozoic Chuar Group (Northern Arizona) and the Uinta Mountain Group (Utah) and their chronostratigraphic implications |
1985 |
original |
Late Riphean |
|
Mauritania |
Amard,B. Late Proterozoic microfossils (Acritarchs) from the Shales of the Atar Formation (Mauritania) |
1986 |