461.7 - 456.2 Ma

The definition of this interval in the timescale Ordovician of Ibero-Bohemia is taken from the following source:

• W. B. Harland, R. L. Armstrong, A. V. Cox, L. E. Craig, A. G. Smith and D. G. Smith. 1990. A Geologic Time Scale 1989. view

The top and bottom ages have been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.

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

• International Chronostratigraphic Timescale: Middle Ordovician epoch, Late Ordovician epoch, Sandbian age, Darriwilian age
• Ordovician of Britain: Early Llandeilo age, Early Llanvirn age, Harnagian age, Aurelucian age, Abereiddian age, Burrellian age, Llandeilian age, Costonian age, Soudleyan age, Middle Llandeilo age, Llandeilo age, Llanvirn epoch, Woolstonian age, Longvillian age, Late Llanvirn age, Caradoc epoch, Late Llandeilo age
• Ordovician of the Baltic: Aluoja age, Aseri age, Uhaku age, Haljala age, Idavere age, Viru epoch, Kukruse age, Lasnamagi age
• Ordovician of Ibero-Bohemia: Vinice age, Liben age, Berounian age, Dobrotivian age, Oretanian age, Zahorany age, Bohdalec age
• Ordovician of Australia: Gisbornian age
• Ordovician of China: Hulo age, Shikou age, Neichianshanian age, Hanjiang age, Xiaoxita age, Guniu age
• Ordovician of North America: Turinian age, Chazyan age, Wildernessian age, Shermanian age, Marmor age, Kirkfieldian age, Trentonian age, Whiterockian epoch, Franklinian age, Rocklandian age, Canadian age, Blackriveran age, Ashbyan age, Mohawkian epoch

This interval is no longer in current use

This interval is used in the definition of 2 collections

A total of 1221 collections with 9044 occurrences lie within this time span