| details |
Late Riphean |
|
USSR(Urals) |
German,T.N. et al. Systematic descriptions of microfossils. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |
| details |
Late Riphean |
|
Russia(Kola Peninsula) |
Samuelsson,J. Biostratigraphy and palaeobiology of Early Neoproterozoic strata of the Kola Peninsula, Northwest Russia |
1997 |
| details |
Early Proterozoic |
|
Canada(Arctic) |
Butterfield,N.J. et al. Diverse organic-walled fossils, including "possible dinoflagellate", from the Early Neoproterozoic of Arctic Canada. |
1998 |
| details |
Middle Proterozoic |
Late Proterozoic |
Greenland |
Samuelsson,J. et al. Organic-walled microfossils from the Proterozoic Thule Supergroup, northwest Greenland. |
1999 |