497 - 485.4 Ma

The definition of this interval in the timescale Cambrian of North America 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

There are intervals in 9 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Furongian epoch, Jiangshanian age, Stage 10 age, Paibian age
• Cambrian Epochs: Late Cambrian epoch
• Ordovician of the Baltic: Pakerort age, Oeland epoch
• Ordovician of North America: Skullrockian age, Ibexian epoch
• Cambrian of China: Youshuanian age, Waergangian age, Niuchehean age, Taoyuanian age
• Cambrian of Australia: Datsonian age, Payntonian age, Idamean age, Iverian age
• Cambrian of Siberia: Yurakian age, Nganasanian age, Sakian age, Maduan age, Aksaian age, Ensyan age, Tavgian age, Ketyan age, Batyrbaian age
• Cambrian of North America: Millardan age, Steptoean age, Dresbachian age, Sunwaptan age
• Cambrian of Britain: Trempealeauan age, Dolgellian age, Maentwrogian age

This interval is no longer in current use

This interval is used in the definition of 214 collections

A total of 2406 collections with 12293 occurrences lie within this time span