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

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		Ordovician of the Baltic				Cambrian of Kazakhstan	Ordovician of Britain
Ordovician	Late Ordovician	Hirnantian			Harju	Porkuni				Ashgill	Hirnantian			443.8
		Katian				Pirgu					Rawtheyan			445.2
											Cautleyan			448.9 *
											Pusgillian			449.3 *
						Vormsi				Caradoc	Streffordian	Onnian †		449.6 *
						Nabala	Johvi †							450 *
					Viru	Rakvere								450.6 *
						Rakvere					Cheneyan			451.5 *
						Oandu					Cheneyan			452 *
						Oandu					Burrellian			452.7 *
		Sandbian				Keila	Idavere †							453
						Keila						Actonian †		453.2 *
						Haljala						Actonian †		453.9
												Marshbrookian †	Woolstonian †	454.2 *
												Longvillian †		455.2 *
						Kukruse								456.4 *
											Aurelucian			456.8 *
												Soudleyan †/Harnagian/Costonian		457.4 *
						Uhaku	Aluoja †					Soudleyan †/Harnagian/Costonian		457.5 *
	Middle Ordovician	Darriwilian				Uhaku				Llanvirn	Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn			458.4
						Lasnamagi								458.9 *
						Aseri								460.4 *
						Aseri					Abereiddian/Early Llanvirn			461.3 *
					Oeland	Kunda								462.9 *
						Kunda	Valaste †/Hunderum							464.3 *
						Volkhov		Langevoja †/Vaana/Saka						467.1 *
		Dapingian												467.3
										Arenig	Fennian			468.4 *
						Billingen								469.3 *
	Early Ordovician	Floian												470
							Latorp †							470.1 *
											Whitlandian			471.1 *
						Hunneberg					Whitlandian			473.7 *
											Moridunian			474.3 *
		Tremadocian							Ungurian	Tremadoc	Migneintian			477.7
											Cressagian			480.8 *
						Varangu								481.3 *
						Pakerort								482.2 *
														485 *
Cambrian	Furongian	Stage 10	Niuchehean	Taoyuanian †					Batyrbaian					485.4
														486.3 *
														486.5
		Jiangshanian	Jiangshanian											489.5
									Aksaian					490.7 *
									Sakian					492.2 *
		Paibian	Paibian											494
		Paibian	Paibian	Waergangian †/Youshuanian										494.9 *
	Miaolingian	Guzhangian	Guzhangian	Wangcunian †					Ayusokkanian					497
		Guzhangian	Guzhangian											499.5
		Drumian	Drumian						Zhanaarykian					500.5
		Drumian	Drumian						Tuesaian					503
		Wuliuan	Wuliuan/Taijangian						Tuesaian					504.5
		Wuliuan	Wuliuan/Taijangian											505.3
	Series 2	Stage 4	Duyunian											509
									Toyonian					510 *
									Botomian					512.5 *
		Stage 3	Nangaoian						Botomian					514
		Stage 3	Nangaoian						Atdabanian					515.6 *
	Terreneuvian	Stage 2	Meishucunian						Tommotian					521
		Stage 2												525.5
		Fortunian												529
		Fortunian	Jinnigian											530.7
														538.8