| details |
Late Vendian |
Early Cambrian |
Spain |
Palacios Medrano,T. Organic microfossils of the Upper Proterozoic (Central Region of the Iberian Peninsula) |
1989 |
| original |
Late Vendian |
|
Spain |
Palacios Medrano,T. Organic microfossils of the Upper Proterozoic (Central Region of the Iberian Peninsula) |
1989 |
| details |
Riphean |
Early Cambrian |
Norway |
Vidal,G. et al. Micropaleontology, depositional environment and biostratigraphy of the Upper Proterozoic Hedmark Group, Southern Norway. (In: Proterozoic Evolution and Environments. A.H.Knoll and J.H.Ostrom, editors) |
1990 |
| details |
Late Riphean |
Vendian |
Sweden |
Vidal,G. et al. Patterns of phytoplankton radiation across the Precambrian-Cambrian boundary. |
1992 |
| details |
Early Cambrian |
|
Spain |
Vidal,G. et al. Neoproterozoic-Early Cambrian geology and Palaeontology of Iberia |
1994 |