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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 | Middle Eocene | Pleistocene | Alaska | Olson,D.L. et al. Biostratigraphy. (In: Geological and Operational Summary Norton Sound Cost No.2 Well Norton Sound, Alaska. R.F.Turner, editor) | 1987 |
| details | Middle Cretaceous | Alaska | Bujak Davies Group Palynological analysis of 48 outcrop samples from the Colville River and Ivishak River areas, Northern Alaska. | 1989 |