538.8 - 509 Ma

The definition of this interval in the timescale Cambrian Epochs is taken from the following source:

• F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view

There are intervals in 6 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Stage 4 age, Stage 3 age, Stage 2 age, Series 2 epoch, Fortunian age, Terreneuvian epoch
• Cambrian of China: Meishucunian age, Jinnigian age, Duyunian age, Nangaoian age
• Cambrian of Australia: Ordian age
• Cambrian of Siberia: Tommotian age, Nemakit-Daldynian age, Amgan age, Solvan age, Botomian age, Lenian age, Toyonian age, Atdabanian age
• Cambrian of North America: Montezuman age, Waucoban age, Begadean age, Dyeran age, Delamaran age
• Cambrian of West Avalonia: Branchian age, Placentian age

This interval is used in the definition of 236 collections

A total of 3067 collections with 21014 occurrences lie within this time span