Spore sp. Zern.,1930
- Citations total:
- 2
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| original | Desmoinesian | Illinois | Schopf,J.M. Spores characteristic of Illinois Coal No. 6. | 1935 | |
| original | Westphalian A | Westphalian C | Netherlands | Dijkstra,S.J. et al. A monographic revision of Carboniferous megaspores with special consideration to South Limburg, (Netherlands). | 1946 |