Conostoma oblongum
- Citations total:
- 2
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| details | Westphalian | England | Florin,R. On the morphology of the pollen grains in some Palaeozoic Pteridosperms. | 1937 | |
| details | Carboniferous | England | Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. | 1995 |