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Country:
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Russian Federation 
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Province:
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Siberia,Kolyma Range 
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Locality:
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Berezovka River 
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Layer:
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Visean | 
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Lower Boundary:
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Up.Visean  Goniatites BZ base [up.VIS], 333.5 million years
 
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| 
Upper Boundary:
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Visean--Namurian/Serpukhovian [VIS--NAM], 326.4 million years
 
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| 
Georeference:
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