433.4 - 427.4 Ma

The definition of this interval in the timescale International Chronostratigraphic Timescale is taken from the following source:

• K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view

There are intervals in 5 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Sheinwoodian age, Homerian age
• Silurian of the Baltic: Jaani age, Jaagarahu age, Rootsikula age
• Silurian Ages of Europe: Whitwellian age, Gleedonian age
• Silurian of England: Wych age, Buildwas age, Woolhope age, Coalbrookdale age
• Silurian of North America: Niagaran age, Lockportian age

This interval is used in the definition of 1098 collections

A total of 2241 collections with 19031 occurrences lie within this time span