Margomassulina crassara
- Citations total:
- 1
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| original | Vendian | USSR(Urals) | Chepikova,I.K. Acritarchae of Wendean deposits of Volga-Ural oil and Gas Region and their significance for stratigraphy. (In: Sporen and pollen in deposits of oils and Gas-bearing Regions of the USSR.) | 1971 |