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International chronostratigraphic chart: Silurian

Based on the 2024 version. Thumbnail: your favourite silurian guide fossil...Graptolite!
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ArneWi
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Last updated: December 18, 2025
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First submittedDecember 18, 2025
Times taken15
Average score54.5%
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System / Period
Series / Epoch
Stage / Age
Numerical age (Ma)
Silurian
Llandovery
Rhuddanian
443.1 ±0.9
Aeronian
440.5 ±1.0
Telychian
438.6 ±1.0
Wenlock
Sheinwoodian
432.9 ±1.2
Homerian
430.6 ±1.3
Ludlow
Gorstian
426.7 ±1.5
Ludfordian
425.0 ±1.5
Pridoli
422.7 ±1.6
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