Grypania spiralis
- Citations total:
- 3
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| details | Proterozoic | Montana | Walter,M.R. et al. Megascopic algae 1300 Million years old from the Belt Supergroup, Montana. | 1976 | |
| details | Early Riphean | China | Knoll,A.H. et al. Taphonomic and evolutionary changes across the Mesoproterozoic-Neoproterozoic transition | 1995 | |
| details | Proterozoic | China | Knoll,A.H. Archean and Proterozoic paleontology. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) | 1996 |