464.3 - 457.5 Ma

The definition of this interval in the timescale Ordovician of the Baltic is taken from the following source:

• B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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, Darriwilian age, Late Ordovician epoch, Sandbian age
• Ordovician of Britain: Costonian age, Middle Llandeilo age, Harnagian age, Caradoc epoch, Llandeilo age, Late Llandeilo age, Soudleyan age, Early Llanvirn age, Late Llanvirn age, Abereiddian age, Early Llandeilo age, Llandeilian age, Llanvirn epoch, Aurelucian age
• Ordovician of the Baltic: Oeland epoch, Viru epoch, Lasnamagi age, Aseri age, Uhaku age, Kunda age
• Ordovician of Ibero-Bohemia: Liben age, Zahorany age, Dobrotivian age, Letna age, Sarka age, Berounian age, Oretanian age, Bohdalec age, Vinice age
• Ordovician of Australia: Gisbornian age
• Ordovician of China: Xiaoxita age, Guniu age, Neichianshanian age, Hulo age, Shikou age, Hanjiang age
• Ordovician of North America: Marmor age, Canadian age, Whiterockian epoch, Chazyan age

This interval is no longer in current use

This interval is used in the definition of 35 collections

A total of 2839 collections with 17609 occurrences lie within this time span