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Country:
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USA
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Province:
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Arkansas, Independence Co.
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Locality:
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Salado, Quall's Mountain
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Layer:
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Ruddel Shale, middle part |
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Lower Boundary:
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UAR lower--middle Ruddel, 328 million years
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Upper Boundary:
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UAR middle--upper Ruddel, 327.8 million years
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Georeference:
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