| 
Country:
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Germany 
 | 
| 
Province:
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Rhenish Mountains 
 | 
| 
Locality:
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Letmathe, N of Nie brickwork quarry 
 | 
| 
Layer:
 | 
148b [Becker,1997] | 
| 
Lower Boundary:
 | 
UD4A--UD4B: dunkeri Zone base    [15,55], 366.8 million years
 
 | 
| 
Upper Boundary:
 | 
UD4B--UD4C: serpentina Zone base [16,45], 366.4 million years
 
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| 
Georeference:
 | 
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