470 - 467.3 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: Middle Ordovician epoch
• Ordovician of Britain: Early Llanvirn age, Abereiddian age, Arenig epoch, Fennian age, Llanvirn epoch
• Ordovician of the Baltic: Billingen age, Oeland epoch, Hunderum age, Vaana age, Langevoja age, Valaste age, Saka age, Volkhov age
• Ordovician of Ibero-Bohemia: Klabava age, Oretanian age, Arenigian age
• Ordovician of Australia: Yapeenian age, Castlemainian age
• Ordovician of China: Ningkuo age, Hunjiang age, Daobaowan age, Dawan age
• Ordovician of North America: Marmor age, Chazyan age, Rangerian age, Canadian age, Whiterockian epoch

This interval is used in the definition of 184 collections

A total of 676 collections with 3529 occurrences lie within this time span