Tournaisian age - Frasnian age
| International Chronostratigraphic Timescale | |||
|---|---|---|---|
| Carboniferous | Pennsylvanian | Gzhelian | 298.9 |
| Kasimovian | 303.7 | ||
| Moscovian | 307 | ||
| Bashkirian | 315.2 | ||
| Mississippian | Serpukhovian | 323.2 | |
| Visean | 330.9 | ||
| Tournaisian | 346.7 | ||
| Devonian | Late Devonian | Famennian | 358.9 |
| Frasnian | 372.2 | ||
| Middle Devonian | Givetian | 382.7 | |
| Eifelian | 387.7 | ||
| Early Devonian | Emsian | 393.3 | |
| Pragian | 407.6 | ||
| Lochkovian | 410.8 | ||
| 419.2 | |||