| original |
Middle Riphean |
Late Riphean |
USSR(Kirghiz SSR) |
Lopukhin,A.S. New microfossils from the Precambrian of Tian-Shan |
1971 |
| details |
Middle Riphean |
Late Riphean |
USSR(Kirghiz SSR) |
Lopukhin,A.S. Phytoplankton of the Proterozoic and Paleozoic of Eurasia. (In: Dispersed Remains of Plant Fossils of Kirghizia.V.G.Korolev, editor) |
1971 |
| details |
Nd |
|
USSR(Kazakh SSR) |
Lopukhin,A.S. The Proterozoic and Early Cambrian phytoplankton of Tien Shan. |
1973 |
| details |
Nd |
|
Africa |
Lopukhin,A.S. The Proterozoic and Early Cambrian phytoplankton of Tien Shan. |
1973 |
| details |
Late Riphean |
|
Sweden |
Vidal,G. Late Precambrian microfossils from the basal sandstone unit of the Visingso Beds, South Sweden. |
1974 |
| details |
Middle Riphean |
|
USSR(Yakut ASSR) |
Lopukhin,A.S. Riphean microfossils of north-eastern Pri-Anabar (Lower Lena River, Chekurovka Village). |
1974 |
| details |
Precambriam |
|
Canada(Ontario) |
Awramik,S.M. et al. The Gunflint Microbiota. |
1977 |
| details |
Late Precambrian |
|
Canada(Newfoundland) |
Hofmann,H.J. et al. Late Precambrian microfossils, southeastern Newfoundland. |
1979 |
| details |
Late Precambrian |
|
Finland |
Tynni,R. et al. A microfossil and sedimentation study of the Late Precambrian formation of Hailuoto, Finland. |
1980 |
| details |
Middle Riphean |
Late Riphean |
Nd |
Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. |
1990 |