Polyforama medialis
- Citations total:
- 3
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| original | Late Proterozoic | USSR(Yakut ASSR) | Pykhova,N.G. Acritarchs of the southeastern Siberian Platform. (In:Tommotsk age and problems of the Lower Cambrian) | 1969 | |
| details | Middle Ordovician | USSR(Vologda) | Timofeev,B.V. et al. Microfossils of the Precambrian, Cambrian and Ordovician. | 1976 | |
| details | Early Cambrian | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |