Williamsonia pecten
- Citations total:
- 4
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Author - title
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| details | England | Potonie,R. Synopsis of the Sporae in situ. | 1962 | ||
| details | Miocene | Pakistan | Dzitiev,A.K. Palynological basis for the subdivision of Miocene deposits in Boreholes of the Jaldi Area, East Pakistan. | 1967 | |
| details | Paleogene | Neogene | Poland | Grabowska,I. Flora of the Palaeogene and the Neogene. (In: Catalogue of Fossil. Part 3A. Cainozoic, Tertiary. J.Czerminski, editor) | 1977 |
| details | Jurassic | England | Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. | 1995 |