International chronostratigraphic chart: Devonian

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ArneWi
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Last updated: December 18, 2025
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First submittedDecember 18, 2025
Times taken7
Average score10.0%
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System / Period
Series / Epoch
Stage / Age
Numerical age (Ma)
Devonian
Lower
Lochkovian
419.62 ±1.36
Pragian
413.02 ±1.91
Emsian
410.62 ±1.95
Middle
Eifelian
393.47 ±0.99
Givetian
387.95 ±1.04
Upper
Frasnian
382.31 ±1.36
Famennian
372.15 ±0.46
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