445.2 - 443.1 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. 2024. The ICS International Chronostratigraphic Chart v2024/12. International Commission on Stratigraphy view

There are intervals in 7 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Late Ordovician epoch
• Ordovician of Britain: Ashgill epoch
• Ordovician of the Baltic: Harju epoch, Porkuni age
• Ordovician of Ibero-Bohemia: Kosovian age
• Ordovician of Australia: Bolindian age
• Ordovician of China: Xiaoxita age, Shikou age, Wufeng age
• Ordovician of North America: Gamachian age, Cincinnatian epoch

This interval is used in the definition of 488 collections

A total of 746 collections with 3965 occurrences lie within this time span