| 
Country:
 | 
Poland 
 | 
| 
Province:
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Lublin Coal Basin 
 | 
| 
Locality:
 | 
Niedrzwicka 2 borehole 
 | 
| 
Layer:
 | 
Upper Famennian, 2411-2417 m | 
| 
Lower Boundary:
 | 
UD5C--UD6A1: Sphenoclym.brevispina base, 364 million years
 
 | 
| 
Upper Boundary:
 | 
UD6E--UD6F:Cym.nigra--A.prorsum  [19,40], 360 million years
 
 | 
| 
Georeference:
 | 
 |