| 
Country:
 | 
Iran 
 | 
| 
Province:
 | 
Alborz Mts. 
 | 
| 
Locality:
 | 
Amol, 20 km S of, lower Heraz Valley 
 | 
| 
Layer:
 | 
upper Nesen Fm. | 
| 
Lower Boundary:
 | 
Capitanian--Wuchiapingian [CAP--DZH], 260.4 million years
 
 | 
| 
Upper Boundary:
 | 
Wuchiapingian--Changhsingian [DZH--CHX], 253.8 million years
 
 | 
| 
Georeference:
 | 
 |