| 
Country:
 | 
Germany 
 | 
| 
Province:
 | 
Harz 
 | 
| 
Locality:
 | 
Harzgerode, Schneckenberg quarry 
 | 
| 
Layer:
 | 
Dalmanites Shale | 
| 
Lower Boundary:
 | 
Pragian--Emsian [di97:10,50]  [PRA--EMS], 409.8 million years
 
 | 
| 
Upper Boundary:
 | 
Zlichovian--Dalejan (l.--u.Ems.) [14,20], 404 million years
 
 | 
| 
Georeference:
 | 
 |