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Country:
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Poland 
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Province:
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Upper Silesian Coal Basin 
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| 
Locality:
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Maczki IG1 borehole 
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| 
Layer:
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Pe delta, 2184,7-2184,4 m | 
| 
Lower Boundary:
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DER Pe delta, nasutus Z. base  [09.25], 334.5 million years
 
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| 
Upper Boundary:
 | 
Up.Visean  Goniatites BZ base [up.VIS], 333.5 million years
 
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| 
Georeference:
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