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Country:
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USA 
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Province:
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Arkansas, Washington Co. 
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Locality:
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Fayetteville City reservoir 
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Layer:
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Bloyd Fm., Kessler Lst. | 
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Lower Boundary:
 | 
UAR Dye Shale--Kessler lmst., 311.3 million years
 
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| 
Upper Boundary:
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U  Morrowan (Bloydian)--Atokan[MOR--ATO], 310.4 million years
 
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| 
Georeference:
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