Margopertusina acerbe
- Citations total:
- 2
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| details | Cambrian | Tremadocian | USSR(Russian Platform) | Umnova,N.I. et al. Acritarch assemblages from the Cambrian and Early Ordovician sediments of western and northwestern Russian Platform. (In: Palynology research in Byelorussia and other Regions of the USSR) | 1971 |
| details | Tremadocian | USSR(Moscow) | Ivanova,T.D. Cambrian-Ordovician boundary Beds of the Moscow Syneclise | 1975 |