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Chuguchanian
1703
Type
Age
Age range
337.5–334
Ma
International Timescale
Mississippian
Visean
Siberian Regional
Ovlachanian
Chuguchanian
Kirinian
337.6
337.4
337.2
337.0
336.8
336.6
336.4
336.2
336.0
335.8
335.6
335.4
335.2
335.0
334.8
334.6
334.4
334.2
334.0
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