Middle Cambrian epoch

509 - 497 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 8 timescales which overlap this one. show

This interval is used in the definition of 358 collections

A total of 2359 collections with 13695 occurrences lie within this time span

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International Chronostratigraphic TimescaleCambrian Epochs
CambrianFurongianStage 10Late Cambrian485.4
Jiangshanian489.5
Paibian494
MiaolingianGuzhangianMiddle Cambrian497
Drumian500.5
Wuliuan504.5
Series 2Stage 4Early Cambrian509
Stage 3514
TerreneuvianStage 2521
Fortunian529
538.8