Steptoean age

497 - 493.5 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, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view

There are intervals in 8 timescales which overlap this one. show

This interval is used in the definition of 199 collections

A total of 477 collections with 2655 occurrences lie within this time span

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International Chronostratigraphic TimescaleCambrian of North America
CambrianFurongianStage 10Franconian †/Dresbachian/Millardan486.85
Sunwaptan488.9 *
Jiangshanian491
Steptoean493.5
Paibian494.2
MiaolingianGuzhangianMarjumianAlbertian †497
Drumian500.5
WuliuanTopazan504.5
Delamaran505.3 *
Series 2Stage 4Waucoban †506.5
Dyeran509.7 *
Stage 3514.5
Montezuman515.3
Begadean520
TerreneuvianStage 2521
Fortunian529
538.8