Trigonocarpus sp. Pett.,1966
- Citations total:
- 2
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| original | Carboniferous | Kansas | Pettitt,J.M. Exine structure in some fossil and recent spores and pollen as revealed by light and electron microscopy. | 1966 | |
| original | Virgilian | Kansas | Kedves,M. Tranmission Electron Microscopy of the Fossil Spores. | 1996 |