467.3 - 458.4 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 6 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Middle Ordovician epoch
• Ordovician of Britain: Late Llanvirn age, Abereiddian age, Early Llanvirn age, Early Llandeilo age, Middle Llandeilo age, Llandeilian age, Llanvirn epoch, Llandeilo age, Late Llandeilo age
• Ordovician of the Baltic: Aseri age, Saka age, Vaana age, Volkhov age, Aluoja age, Lasnamagi age, Valaste age, Uhaku age, Viru epoch, Oeland epoch, Hunderum age, Kunda age, Langevoja age
• Ordovician of Ibero-Bohemia: Berounian age, Liben age, Letna age, Dobrotivian age, Oretanian age, Sarka age
• Ordovician of China: Ningkuo age, Daobaowan age, Hunjiang age, Dawan age, Guniu age, Hulo age
• Ordovician of North America: Whiterockian epoch, Marmor age, Canadian age, Chazyan age

This interval is used in the definition of 460 collections

A total of 3113 collections with 18209 occurrences lie within this time span