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 2376 collections with 13928 occurrences lie within this time span
| International Chronostratigraphic Timescale | Cambrian Epochs | Cambrian of North America | ||||
|---|---|---|---|---|---|---|
| Cambrian | Furongian | Stage 10 | Late Cambrian | Franconian †/Dresbachian/Millardan | 485.4 | |
| Sunwaptan | 487.5 | |||||
| Jiangshanian | 489.5 | |||||
| Steptoean | 493 * | |||||
| Paibian | 494 | |||||
| Miaolingian | Guzhangian | Middle Cambrian | Marjumian | Albertian † | 497 | |
| Drumian | 500.5 | |||||
| Wuliuan | Topazan | 504.5 | ||||
| Delamaran | 506.5 | |||||
| Series 2 | Stage 4 | Early Cambrian | Waucoban † | 509 | ||
| Dyeran | 511 * | |||||
| Stage 3 | 514 | |||||
| Montezuman | 514.8 * | |||||
| Begadean | 519.9 * | |||||
| Terreneuvian | Stage 2 | 521 | ||||
| Fortunian | 529 | |||||
| 538.8 | ||||||