Trachysphaeridium acis
- Citations total:
- 3
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| details | Early Devonian | USSR(Bashkir ASSR) | Chepikova,I.K. Stratigraphic position of the Upper Bavly Beds in the Volga-Ural Region. | 1971 | |
| details | Early Devonian | USSR(Permsk Oblast) | Chepikova,I.K. Stratigraphic position of the Upper Bavly Beds in the Volga-Ural Region. | 1971 | |
| details | Middle Proterozoic | China(Hopei) | Yan,Y.-Z. Shale-Facies microflora from the Changzhougou Formation (Changcheng System) in Pangjiabu Region, Hebei, China. | 1991 |