| original |
Late Riphean |
|
USSR(Krasnoyarsk Kray) |
Timofeev,B.V. et al. Microfossils of the Precambrian, Cambrian and Ordovician. |
1976 |
| details |
Riphean |
|
USSR(Siberia) |
Veis,A.F. Riphean and Vendian microfossils of the Ushur-Maya and Turukhan Regions of Siberia |
1988 |
| details |
Late Riphean |
|
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |
| details |
Late Precambrian |
|
China(Shansi) |
Yan,Y.-Z. et al. Discovery of Acanthomorphic acritarchs from the Baicaoping Formation in Yongji, Shanxi and its geological significance. |
1992 |