Marshbrookian age
455 - 454 Ma
The definition of this interval in the timescale Ordovician of Britain is taken from the following source:
- W. B. Harland, R. L. Armstrong, A. V. Cox, L. E. Craig, A. G. Smith and D. G. Smith. 1990. A Geologic Time Scale 1989. view
There are intervals in 7 timescales which overlap this one. show
This interval is no longer in current use
This interval is used in the definition of 114 collections
A total of 29 collections with 135 occurrences lie within this time span
| International Chronostratigraphic Timescale | Ordovician of Britain | ||||||
|---|---|---|---|---|---|---|---|
| Ordovician | Late Ordovician | Hirnantian | Ashgill | Hirnantian | 443.1 | ||
| Katian | Rawtheyan | 445.2 | |||||
| Cautleyan | 448.8 | ||||||
| Pusgillian | 449.2 | ||||||
| Caradoc | Streffordian | Onnian † | 449.5 | ||||
| Cheneyan | 451.3 | ||||||
| Burrellian | 452.5 | ||||||
| Sandbian | 452.8 | ||||||
| Actonian † | 453 | ||||||
| Marshbrookian † | Woolstonian † | 454 | |||||
| Longvillian † | 455 | ||||||
| Aurelucian | 456.6 | ||||||
| Soudleyan †/Harnagian/Costonian | 457.2 | ||||||
| Middle Ordovician | Darriwilian | Llanvirn | Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn | 458.2 | |||
| Abereiddian/Early Llanvirn | 461.1 | ||||||
| Arenig | Fennian | 468 | |||||
| Dapingian | 469.4 | ||||||
| Whitlandian | 470.7 | ||||||
| Early Ordovician | Floian | 471.3 | |||||
| Moridunian | 473.8 | ||||||
| Tremadocian | Tremadoc | Migneintian | 477.1 | ||||
| Cressagian | 481.1 * | ||||||
| 486.4 * | |||||||
| 486.85 | |||||||