| 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 | Miocene | Alaska | Leopold,E.B. et al. A long pollen sequence of Neogene age, Alaska range. (In: Tertiary Quaternary Boundaries. T.A. Ager et al, editors) | 1994 | |
| details | Oligocene | Pliocene | Alaska | Merritt,R.D. Coal atlas of the Nenana Basin, Alaska. | 1985 |