Valvisisporites undulatus
- Citations total:
- 2
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| details | Westphalian B | Poland | Zoldani,Z. A taxonomic and stratigraphical study of the genus Valvisisporites from the Carboniferous of the Lublin District. | 1966 | |
| details | Carboniferous | Poland | Jachowicz,A. Flora of the Carboniferous:Microflora | 1972 |