- Author:
- Chepikova,I.K.
- Year:
- 1971
- Title:
- Stratigraphic position of the Upper Bavly Beds in the Volga-Ural Region.
- Reference:
- Chepikova,I.K. (1971) Stratigraphic position of the Upper Bavly Beds in the Volga-Ural Region. Doklady Akademii Nauk SSSR Vol. 197 # 1 P. 77- 78
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| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Spumiosa | Spumiosa subtila | USSR(Bashkir ASSR) | Early Devonian | |
| Spumiosa | Spumiosa subtila | USSR(Permsk Oblast) | Early Devonian | |
| Trachysphaeridium | Trachysphaeridium acis | USSR(Bashkir ASSR) | Early Devonian | |
| Trachysphaeridium | Trachysphaeridium acis | USSR(Permsk Oblast) | Early Devonian |