Millardan age

497 - 485.4 Ma

The definition of this interval in the timescale Cambrian of North America 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 9 timescales which overlap this one. show

This interval is no longer in current use

This interval is used in the definition of 11 collections

A total of 2466 collections with 12570 occurrences lie within this time span

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International Chronostratigraphic TimescaleCambrian of North AmericaOrdovician of North America
470
482
CambrianFurongianStage 10Franconian †/Dresbachian/MillardanIbexianSkullrockian485.4 *
Sunwaptan487.5
Jiangshanian489.5
Steptoean493 *
Paibian494
MiaolingianGuzhangianMarjumianAlbertian †497
Drumian500.5
WuliuanTopazan504.5
Delamaran506.5
Series 2Stage 4Waucoban †509
Dyeran511 *
Stage 3514
Montezuman514.8 *
Begadean519.9 *
TerreneuvianStage 2521
Fortunian529
538.8