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Stratigraphy of John Day Fossil Beds region
Generalized stratigraphic column of the John Day Fossil Beds region (modified after: Fremd, T., Bestlands, E.A., and Retallack, G.J., 1994. John Day Basin Paleontology: Field Trip Guide and Road Log: Society of Vertebrate Paleontology Annual Meeting, 1994, 80 p.)
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