453 - 445.2 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 7 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Late Ordovician epoch
• Ordovician of Britain: Rawtheyan age, Cautleyan age, Burrellian age, Caradoc epoch, Ashgill epoch, Pusgillian age, Streffordian age, Cheneyan age, Onnian age
• Ordovician of the Baltic: Pirgu age, Vormsi age, Harju epoch, Nabala age, Oandu age, Viru epoch, Johvi age, Rakvere age
• Ordovician of Ibero-Bohemia: Kralodvorian age, Bohdalec age, Berounian age
• Ordovician of Australia: Gisbornian age, Eastonian age, Bolindian age
• Ordovician of China: Hanjiang age, Shikou age, Neichianshanian age, Xiaoxita age, Chientangkiangian age, Wufeng age
• Ordovician of North America: Kirkfieldian age, Edenian age, Franklinian age, Richmondian age, Trentonian age, Maysvillian age, Rocklandian age, Chatfieldian age, Cincinnatian epoch, Shermanian age, Mohawkian epoch, Gamachian age, Blackriveran age, Wildernessian age, Ashbyan age

This interval is used in the definition of 695 collections

A total of 5533 collections with 38395 occurrences lie within this time span