Termín
| Sibiřská platforma |
| Burian (Katian – Hirnant) |
| Nirundian (Katian) |
| Dolborian (Katian) |
| Baksian (Sandbian – Katian) |
| Chertovskian (Sandbian) |
| Kirensko-Kudrinian (Darriwil) |
| Volginian (Darriwil) |
| Mukteian (Darriwil) |
| Vikhorevian (Darriwil) |
| Kimaian (Daping – Darriwil) |
| Ugorian (Floian) |
| Nyaian (Tremadok) |
Předchází