| details |
Late Riphean |
|
USSR(Chelyabinskaya) |
Keller,B.M. et al. Microfossils in the Riphean stratotype section in the Southern Urals |
1980 |
| details |
Late Riphean |
|
USSR(Yakut ASSR) |
German,T.N. et al. Systematic descriptions of microfossils. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |
| details |
Nd |
|
Nd |
Hofmann,H.J. et al. Shale-Facies microfossils from the Proterozoic Bylot Supergroup, Baffin Island, Canada. |
1994 |
| details |
Late Riphean |
|
Spitsbergen |
Butterfield,N.J. et al. Paleobiology of the Neoproterozoic Svabergfjellet Formation, Spitsbergen |
1994 |