PBDB Timescale

Cambrian of China

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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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

There are 12 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 1049 collections

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International Chronostratigraphic Timescale			Cambrian of China		Cambrian of Britain		Cambrian Epochs	Ordovician of the Baltic				Cambrian of Siberia
Ordovician	Late Ordovician	Hirnantian						Harju	Porkuni						443.8
		Katian							Pirgu						445.2
									Vormsi						449.6 *
									Nabala	Johvi †					450 *
								Viru	Rakvere						450.6 *
									Oandu						452 *
		Sandbian							Keila	Idavere †					453
									Haljala						453.9
									Kukruse						456.4 *
									Uhaku	Aluoja †					457.5 *
	Middle Ordovician	Darriwilian							Uhaku						458.4
									Lasnamagi						458.9 *
									Aseri						460.4 *
								Oeland	Kunda						462.9 *
									Kunda	Valaste †/Hunderum					464.3 *
									Volkhov		Langevoja †/Vaana/Saka				467.1 *
		Dapingian							Volkhov						467.3
		Dapingian							Billingen						469.3 *
	Early Ordovician	Floian													470
										Latorp †					470.1 *
									Hunneberg						473.7 *
		Tremadocian							Hunneberg						477.7
									Varangu						481.3 *
									Pakerort						482.2 *
												Mansian †			483.55 *
Cambrian	Furongian	Stage 10	Niuchehean	Taoyuanian †	Merioneth	Dolgellian/Trempealeauan	Late Cambrian					Batyrbaian	Tavgian †	Ketyan †/Yurakian	485.4
															486.3 *
															486.5
						Festiniogian									489.2 *
		Jiangshanian	Jiangshanian												489.5
												Aksaian			490.7 *
												Sakian			492.2 *
						Maentwrogian									493.1 *
		Paibian	Paibian												494
														Ensyan †/Maduan/Nganasanian	494.7 *
				Waergangian †/Youshuanian										Ensyan †/Maduan/Nganasanian	494.9 *
	Miaolingian	Guzhangian	Guzhangian	Wangcunian †	St Davids		Middle Cambrian					Ayusokkanian			497
		Guzhangian	Guzhangian									Mayan/Menevian			499.5
		Drumian	Drumian									Mayan/Menevian			500.5
		Wuliuan	Wuliuan/Taijangian									Amgan/Solvan			504.5
	Series 2	Stage 4	Duyunian		Caerfai		Early Cambrian					Amgan/Solvan			509
												Toyonian	Lenian †		510 *
												Botomian			512.5 *
		Stage 3	Nangaoian									Botomian			514
		Stage 3	Nangaoian									Atdabanian			515.6 *
	Terreneuvian	Stage 2	Meishucunian									Tommotian			521
		Stage 2										Nemakit-Daldynian			525.5
		Fortunian											Manykaian †		529
		Fortunian	Jinnigian										Manykaian †		530.7
															538.8