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Geolocation
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Author - title
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Year
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| details | Barremian | Turonian | Nd | Hughes,N.F. The problems of data handling for early angiosperm-like pollen. (In: Systematic and Taxonomic Approaches in Paleobotany. R.A.Spicer and B.A.Thomas, editors) | 1986 |
| details | Cretaceous | Nd | Lidgard,S. et al. Angiosperm diversification and Cretaceous floristic trends; a comparison of palynofloras and Leaf Macrofloras | 1990 |