Kralodvorian age - Hirnantian age
| International Chronostratigraphic Timescale | Ordovician of Ibero-Bohemia | ||||||
|---|---|---|---|---|---|---|---|
| Ordovician | Late Ordovician | Hirnantian | Kosovian | 443.1 | |||
| Katian | Kralodvorian | Bohdalec † | 445.2 | ||||
| Berounian | 450.1 * | ||||||
| Sandbian | 452.8 | ||||||
| Zahorany †/Vinice | Letna † | 457.3 * | |||||
| Middle Ordovician | Darriwilian | 458.2 | |||||
| Liben † | 459.3 * | ||||||
| Dobrotivian | 459.7 * | ||||||
| Oretanian | 461 * | ||||||
| Sarka † | 463.3 * | ||||||
| Arenigian | 468 | ||||||
| Dapingian | Klabava † | 469.4 | |||||
| Early Ordovician | Floian | 471.3 | |||||
| Tremadocian | Tremadocian | 477.1 | |||||
| 486.85 | |||||||