| link
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From
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To
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Geolocation
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Author - title
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Year
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| details | Valanginian | Barremian | China(Inner Mongolia) | Miao,S.-J. Spores and pollen. | 1982 |
| details | Barremian | Aptian | Bulgaria | Ercegovac,M. et al. Microfloral residues from the Lower Cretaceous of the Stara Planina Montains, Bulgaria. | 1972 |