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Country:
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Czech Republic 
 | 
| 
Province:
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North Moravia 
 | 
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Locality:
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Ostrava, Tiefbauschacht 
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Layer:
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lower Ostrau beds, Hruschau zone | 
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Lower Boundary:
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DER lowest E1--E1 alpha, 326 million years
 
 | 
| 
Upper Boundary:
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Pendleian--Arnsbergian        [PND--ARN], 324 million years
 
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| 
Georeference:
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