Cambrian Epochs

The interval definitions in this timescale are derived from the following sources:

  • F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
  • F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
  • W. B. Harland, R. L. Armstrong, A. V. Cox, L. E. Craig, A. G. Smith and D. G. Smith. 1990. A Geologic Time Scale 1989. view

There are 12 timescales which overlap this one. show

Interval boundaries marked with * have been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.

Interval names marked with † are no longer in current use.

This timescale is used in the definition of 594 collections

Show more time

Show linear time

International Chronostratigraphic TimescaleCambrian EpochsCambrian of ChinaCambrian of BritainCambrian of KazakhstanCambrian of West AvaloniaCambrian of Australia
OrdovicianEarly OrdovicianTremadocianUngurian477.7
CambrianFurongianStage 10Late CambrianNiucheheanTaoyuanian †MerionethDolgellian/TrempealeauanBatyrbaianDatsonian485.4
Payntonian486.8 *
Festiniogian489.2 *
JiangshanianJiangshanianIverian489.5
Aksaian490.7 *
Sakian492.2 *
Maentwrogian493.1 *
PaibianPaibianIdamean494
Waergangian †/Youshuanian494.9 *
MiaolingianGuzhangianMiddle CambrianGuzhangianWangcunian †St DavidsAyusokkanianMindyallan497
Arcadian498.4
Boomerangian499
499.5
DrumianDrumianZhanaarykianUndillan500.5
TuesaianFloran503
WuliuanWuliuan/TaijangianTempletonian504.5
505.3
Ordian507.8 *
Series 2Stage 4Early CambrianDuyunianCaerfaiBranchian509
Toyonian510 *
510.8 *
Botomian512.5 *
Stage 3Nangaoian514
Atdabanian515.6 *
Placentian517.1
TerreneuvianStage 2MeishucunianTommotian521
525.5
Fortunian529
Jinnigian530.7
538.8