| 
Country:
 | 
Poland 
 | 
| 
Province:
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Lublin Coal Basin 
 | 
| 
Locality:
 | 
Niedrzwicka 2 borehole 
 | 
| 
Layer:
 | 
Lower Famennian, 2573-2614,5 m | 
| 
Lower Boundary:
 | 
UD2A--UD2B:(verneuili Zone base) [07,75], 374 million years
 
 | 
| 
Upper Boundary:
 | 
UD2H--UD2I:(mamilliferum base)   [12,90], 370 million years
 
 | 
| 
Georeference:
 | 
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