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: Late Ordovician epoch, Darriwilian age, Middle Ordovician epoch, Sandbian age
• Ordovician of Britain: Harnagian age, Llandeilo age, Early Llandeilo age, Early Llanvirn age, Soudleyan age, Abereiddian age, Late Llanvirn age, Aurelucian age, Costonian age, Llanvirn epoch, Llandeilian age, Caradoc epoch, Late Llandeilo age, Middle Llandeilo age
• Ordovician of the Baltic: Lasnamagi age, Oeland epoch, Aseri age, Kunda age, Uhaku age, Viru epoch
• Ordovician of Ibero-Bohemia: Vinice age, Oretanian age, Bohdalec age, Dobrotivian age, Letna age, Sarka age, Zahorany age, Liben age, Berounian age
• Ordovician of Australia: Gisbornian age
• Ordovician of China: Hulo age, Neichianshanian age, Hanjiang age, Xiaoxita age, Shikou age, Guniu 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 2818 collections with 17448 occurrences lie within this time span