504.5 - 497 Ma

The definition of this interval in the timescale Cambrian of China 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 8 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Miaolingian epoch, Guzhangian age, Drumian age
• Obsolete Names for ICS Units: Series 3 epoch
• Cambrian Epochs: Middle Cambrian epoch
• Cambrian of Australia: Undillan age, Floran age, Boomerangian age, Mindyallan age
• Cambrian of Siberia: Ayusokkanian age, Mayan age, Menevian age
• Cambrian of Kazakhstan: Tuesaian age, Zhanaarykian age
• Cambrian of North America: Albertian age, Marjumian age
• Cambrian of West Avalonia: Arcadian age

This interval is no longer in current use

This interval is used in the definition of 105 collections

A total of 1457 collections with 8406 occurrences lie within this time span