Westphalian A subage
318.7 - 316.9 Ma
The definition of this interval in the timescale Carboniferous of Western Europe is taken from the following source:
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
There are intervals in 6 timescales which overlap this one. show
This interval is used in the definition of 179 collections
A total of 168 collections with 863 occurrences lie within this time span
| International Chronostratigraphic Timescale | Carboniferous of Western Europe | ||||
|---|---|---|---|---|---|
| 297.7 | |||||
| Carboniferous | Pennsylvanian | Gzhelian | Kuzel | 298.9 | |
| Stephanian | Stephanian C | 300.3 * | |||
| Stephanian B | 300.9 * | ||||
| Stephanian A | 301.4 * | ||||
| Kasimovian | 303.7 | ||||
| Cantabrian | 305 * | ||||
| Moscovian | 307 | ||||
| Westphalian | Westphalian D | 307.4 * | |||
| Westphalian C | 309.8 | ||||
| Westphalian B | 314.6 | ||||
| Bashkirian | 315.2 | ||||
| Westphalian A | 316.9 | ||||
| Namurian | Yeadonian | 318.7 | |||
| Marsdenian | 320 | ||||
| Kinderscoutian | 321.3 | ||||
| Alportian | 321.8 | ||||
| Chokierian | 322.8 | ||||
| Mississippian | Serpukhovian | 323.4 | |||
| Arnsbergian | 323.6 * | ||||
| Pendleian | 326.9 * | ||||
| Visean | Warnantian | Brigantian † | 330.3 | ||
| Livian | Asbian † | 335.9 * | |||
| Moliniacian | Holkerian †/Arundian/Chadian | 339.9 * | |||
| Tournaisian | Ivorian | 346.7 | |||
| Hastarian | 353.7 * | ||||
| 358.86 | |||||