458.9 - 457.5 Ma

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

• F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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: Darriwilian age, Sandbian age, Late Ordovician epoch, Middle Ordovician epoch
• Ordovician of Britain: Soudleyan age, Early Llandeilo age, Middle Llandeilo age, Harnagian age, Costonian age, Late Llandeilo age, Llandeilian age, Late Llanvirn age, Aurelucian age, Llanvirn epoch, Caradoc epoch, Llandeilo age
• Ordovician of the Baltic: Aluoja age, Viru epoch
• Ordovician of Ibero-Bohemia: Vinice age, Bohdalec age, Letna age, Liben age, Zahorany age, Dobrotivian age, Berounian age
• Ordovician of Australia: Gisbornian age
• Ordovician of China: Hulo age, Xiaoxita age, Guniu age, Neichianshanian age, Hanjiang age, Shikou age
• Ordovician of North America: Whiterockian epoch, Canadian age, Marmor age, Chazyan age

This interval is used in the definition of 203 collections

A total of 249 collections with 1871 occurrences lie within this time span