Ordovician of Britain
The interval definitions in this timescale are derived from the following sources:
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
- 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
- B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 view
- D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. view
- F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
There are 14 timescales which overlap this one. show
Interval boundaries marked with * have been interpolated based on the differences between the ages for international timescale boundaries quoted in the source and the currently accepted ages for those boundaries.
Interval names marked with † are no longer in current use.
This timescale is used in the definition of 4548 collections
International Chronostratigraphic Timescale | Ordovician of Britain | Cambrian of Kazakhstan | Ordovician of China | Ordovician of Australia | Cambrian of Australia | Cambrian of Siberia | Cambrian Epochs | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ordovician | Late Ordovician | Hirnantian | Ashgill | Hirnantian | Hirnantian | Xiaoxita †/Shikou | Wufeng † | Bolindian | 443.8 | ||||||||
Katian | Rawtheyan | Chientangkiangian | 445.2 | ||||||||||||||
Cautleyan | 448.9 * | ||||||||||||||||
Eastonian | 449 * | ||||||||||||||||
Pusgillian | 449.3 * | ||||||||||||||||
Neichianshanian/Hanjiang | 449.5 | ||||||||||||||||
Caradoc | Streffordian | Onnian † | 449.6 * | ||||||||||||||
Cheneyan | 451.5 * | ||||||||||||||||
Gisbornian | 452 * | ||||||||||||||||
Burrellian | 452.7 * | ||||||||||||||||
Sandbian | 453 | ||||||||||||||||
Actonian † | 453.2 * | ||||||||||||||||
Marshbrookian † | Woolstonian † | 454.2 * | |||||||||||||||
Longvillian † | 455.2 * | ||||||||||||||||
Aurelucian | 456.8 * | ||||||||||||||||
Soudleyan †/Harnagian/Costonian | 457.4 * | ||||||||||||||||
Middle Ordovician | Darriwilian | Llanvirn | Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn | Darriwilian | Guniu †/Hulo | Darriwilian | 458.4 | ||||||||||
Abereiddian/Early Llanvirn | 461.3 * | ||||||||||||||||
Hunjiang † | Dawan †/Daobaowan/Ningkuo | 466.3 * | |||||||||||||||
Dapingian | Dapingian | Yapeenian | 467.3 | ||||||||||||||
Arenig | Fennian | 468.4 * | |||||||||||||||
Castlemainian | 468.5 * | ||||||||||||||||
Early Ordovician | Floian | Yiyangian | Chewtonian | 470 | |||||||||||||
Whitlandian | 471.1 * | ||||||||||||||||
Bendigonian | 471.8 * | ||||||||||||||||
Lancefieldian | 473.5 * | ||||||||||||||||
Moridunian | 474.3 * | ||||||||||||||||
Tremadocian | Tremadoc | Migneintian | Ungurian | Xinchangian | 477.7 | ||||||||||||
Lianghekou † | 477.9 * | ||||||||||||||||
Cressagian | 480.8 * | ||||||||||||||||
Warendian | 482.8 * | ||||||||||||||||
Mansian † | 483.55 * | ||||||||||||||||
485 * | |||||||||||||||||
Cambrian | Furongian | Stage 10 | Batyrbaian | Datsonian | Batyrbaian | Tavgian † | Ketyan †/Yurakian | Late Cambrian | 485.4 | ||||||||
Payntonian | 486.8 * | ||||||||||||||||
Jiangshanian | Iverian | 489.5 | |||||||||||||||
Aksaian | Aksaian | 490.7 * | |||||||||||||||
Sakian | Sakian | 492.2 * | |||||||||||||||
Paibian | Idamean | 494 | |||||||||||||||
Ensyan †/Maduan/Nganasanian | 494.7 * | ||||||||||||||||
Miaolingian | Guzhangian | Ayusokkanian | Mindyallan | Ayusokkanian | Middle Cambrian | 497 | |||||||||||
Boomerangian | 499 | ||||||||||||||||
Mayan/Menevian | 499.5 | ||||||||||||||||
Drumian | Zhanaarykian | Undillan | 500.5 | ||||||||||||||
Tuesaian | Floran | 503 | |||||||||||||||
Wuliuan | Templetonian | Amgan/Solvan | 504.5 | ||||||||||||||
505.3 | |||||||||||||||||
Ordian | 507.8 * | ||||||||||||||||
Series 2 | Stage 4 | Early Cambrian | 509 | ||||||||||||||
Toyonian | Toyonian | Lenian † | 510 * | ||||||||||||||
510.8 * | |||||||||||||||||
Botomian | Botomian | 512.5 * | |||||||||||||||
Stage 3 | 514 | ||||||||||||||||
Atdabanian | Atdabanian | 515.6 * | |||||||||||||||
Terreneuvian | Stage 2 | Tommotian | Tommotian | 521 | |||||||||||||
Nemakit-Daldynian | 525.5 | ||||||||||||||||
Fortunian | Manykaian † | 529 | |||||||||||||||
538.8 |