| 
Country:
 | 
USA 
 | 
| 
Province:
 | 
Arkansas, Independence Co. 
 | 
| 
Locality:
 | 
Earnharts Station on Missouri Pac. Rail. 
 | 
| 
Layer:
 | 
Ruddel Shale, upper part | 
| 
Lower Boundary:
 | 
UAR middle--upper Ruddel, 327.8 million years
 
 | 
| 
Upper Boundary:
 | 
UAR upper Ruddel--Batesville, 327.6 million years
 
 | 
| 
Georeference:
 | 
 |