Protosphaeridium punctatum
- Citations total:
- 2
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| original | Middle Riphean | Early Cambrian | India(Karnataka) | Viswanathiah,M.N. et al. Microfossils of the stromatolites of Lokapur Region, Karnataka. (In: Stromatolites, Characteristics and Utility) | 1980 |
| details | Middle Riphean | Early Cambrian | India(Karnataka) | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |