Humboldtia
- Citations total:
- 2
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| original | Tertiary | India(Tamil Nadu) | Thiergart,F. et al. Some spores and pollen grains from the Tertiary Brown Coal of Neyvli. | 1963 | |
| details | Nd | Nd | Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). | 1966 |