Botomian age - Caerfai
| International Chronostratigraphic Timescale | Cambrian of Siberia | Cambrian of Britain | ||||||
|---|---|---|---|---|---|---|---|---|
| Cambrian | Furongian | Stage 10 | Batyrbaian | Tavgian † | Ketyan †/Yurakian | Merioneth | Dolgellian/Trempealeauan | 485.4 |
| Festiniogian | 489.2 * | |||||||
| Jiangshanian | 489.5 | |||||||
| Aksaian | 490.7 * | |||||||
| Sakian | 492.2 * | |||||||
| Maentwrogian | 493.1 * | |||||||
| Paibian | 494 | |||||||
| Ensyan †/Maduan/Nganasanian | 494.7 * | |||||||
| Miaolingian | Guzhangian | Ayusokkanian | St Davids | 497 | ||||
| Mayan/Menevian | 499.5 | |||||||
| Drumian | 500.5 | |||||||
| Wuliuan | Amgan/Solvan | 504.5 | ||||||
| Series 2 | Stage 4 | Caerfai | 509 | |||||
| Toyonian | Lenian † | 510 * | ||||||
| Botomian | 512.5 * | |||||||
| Stage 3 | 514 | |||||||
| Atdabanian | 515.6 * | |||||||
| Terreneuvian | Stage 2 | Tommotian | 521 | |||||
| Nemakit-Daldynian | 525.5 | |||||||
| Fortunian | Manykaian † | 529 | ||||||
| 538.8 | ||||||||