| 
Country:
 | 
USA 
 | 
| 
Province:
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Missouri, Hickory County 
 | 
| 
Locality:
 | 
Darnell, east bluff of Weaubleau Creek 
 | 
| 
Layer:
 | 
Chouteau Limestone | 
| 
Lower Boundary:
 | 
UMO Chouteau Lst. base, 354 million years
 
 | 
| 
Upper Boundary:
 | 
UMO Chouteau Lst. top, 353 million years
 
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| 
Georeference:
 | 
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