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Country:
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USA 
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Province:
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Alabama, Franklin Co. 
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Locality:
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Isbell Section 
 | 
| 
Layer:
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Parkwood Fm. | 
| 
Lower Boundary:
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RUS Nm2b3--Nm2c1,Bilinguites-Cancelloc.G, 314.8 million years
 
 | 
| 
Upper Boundary:
 | 
GBY R2--G1 (superbiling.--C.cancellatum), 313.8 million years
 
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| 
Georeference:
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