Megasphaeromorphida
- Citations total:
- 3
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| details | Late Precambrian | Riphean | USSR(Siberia) | Timofeev,B.V. Proterozoic and Early Paleozoic microfossils | 1971 |
| details | Riphean | USSR(Krasnoyarsk Kray) | Timofeev,B.V. et al. Meitosis in Riphean algae. | 1974 | |
| details | Late Proterozoic | USSR(Siberia) | Ivanevskaya,A.V. et al. Distribution of microphytofossils in different lithological zones of Riphean in East Siberia. (In: Microfossils USSR. T.F.Vozzhennikova et al, editors) | 1974 |