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Geolocation
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Author - title
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Year
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| details | Early Miocene | Denmark | Koch,B.E. et al. Geological and paleobotanical investigations of the Miocene Brown Coal near Fasterholt, Jutland, Denmark. | 1970 | |
| details | Middle Eocene | Early Oligocene | Mississippi | Frederiksen,N.O. Mid-Tertiary climate of southeastern Unites States: The sporomorph evidence. | 1980 |