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Geolocation
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Author - title
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Year
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| details | Late Neogene | Pleistocene | Arizona | Gray,J. Micropaleobotanical research on the Late Tertiary sediments of Arizona. | 1960 |
| details | Miocene | Late Neogene | Arizona | Nations,J.D. Palaeontology, paleoecology, and depositional history of the Miocene-Pliocene Verde Formation, Yavapoi County, Arizona. | 1981 |