| 
Country:
 | 
Portugal 
 | 
| 
Province:
 | 
Baixo Alentejo 
 | 
| 
Locality:
 | 
Almoinha Velha, 12 km S of Mértola 
 | 
| 
Layer:
 | 
Flysch sequence | 
| 
Lower Boundary:
 | 
DER Go beta falcatus--Go beta gracilis, 329.1 million years
 
 | 
| 
Upper Boundary:
 | 
DER Go spirale--Go beta rotundum, 328.6 million years
 
 | 
| 
Georeference:
 | 
 |