| 
Country:
 | 
Spain 
 | 
| 
Province:
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Sierra Morena 
 | 
| 
Locality:
 | 
Guadalmez, 1 km s of, railroad km 299.1 
 | 
| 
Layer:
 | 
Casa de la Vega Fm., basal beds | 
| 
Lower Boundary:
 | 
UD1L--UD2A:(frechi Zone base)    [06,10], 374.5 million years
 
 | 
| 
Upper Boundary:
 | 
UD2F--UD2G:(subvaricatum Zone base), 370.8 million years
 
 | 
| 
Georeference:
 | 
 |