538.8 - 485.4 Ma
The definition of this interval in the timescale International Chronostratigraphic Timescale is taken from the following source:
- K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view
There are intervals in 12 timescales which overlap this one. show
- International Chronostratigraphic Timescale: Series 2 epoch, Stage 4 age, Guzhangian age, Stage 10 age, Miaolingian epoch, Terreneuvian epoch, Paibian age, Wuliuan age, Fortunian age, Furongian epoch, Stage 3 age, Stage 2 age, Jiangshanian age, Drumian age
- Obsolete Names for ICS Units: Stage 5 age, Series 3 epoch
- Cambrian Epochs: Early Cambrian epoch, Late Cambrian epoch, Middle Cambrian epoch
- Ordovician of the Baltic: Pakerort age, Oeland epoch
- Ordovician of North America: Ibexian epoch, Skullrockian age
- Cambrian of China: Waergangian age, Duyunian age, Niuchehean age, Jinnigian age, Meishucunian age, Taoyuanian age, Nangaoian age, Youshuanian age, Wangcunian age, Taijangian age
- Cambrian of Australia: Mindyallan age, Idamean age, Undillan age, Ordian age, Iverian age, Templetonian age, Datsonian age, Floran age, Payntonian age, Boomerangian age
- Cambrian of Siberia: Ayusokkanian age, Tavgian age, Menevian age, Ketyan age, Mayan age, Solvan age, Batyrbaian age, Amgan age, Atdabanian age, Yurakian age, Tommotian age, Nemakit-Daldynian age, Sakian age, Nganasanian age, Lenian age, Ensyan age, Aksaian age, Maduan age, Toyonian age, Botomian age
- Cambrian of Kazakhstan: Zhanaarykian age, Tuesaian age
- Cambrian of North America: Franconian age, Topazan age, Steptoean age, Marjumian age, Dresbachian age, Dyeran age, Albertian age, Sunwaptan age, Waucoban age, Montezuman age, Millardan age, Begadean age, Delamaran age
- Cambrian of West Avalonia: Arcadian age, Branchian age, Placentian age
- Cambrian of Britain: Maentwrogian age, Trempealeauan age, Dolgellian age
This interval is used in the definition of 206 collections
A total of 7790 collections with 46728 occurrences lie within this time span