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
M. Kretzoi. 1942. Necroteuthis n. g. (Ceph. Dibr., Necroteuthidae N. F.) aus dem Oligozän von Budapest und das system der Dibranchiata. Földtani Közlöny 72:125-238 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
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 1048 collections

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International Chronostratigraphic Timescale			Cambrian of China		Ordovician of North America					Cambrian of Siberia			Cambrian of Kazakhstan
Ordovician	Late Ordovician	Hirnantian			Cincinnatian	Gamachian								443.8
		Katian				Gamachian								445.2
						Richmondian								446 *
						Maysvillian	Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian							449.8 *
						Edenian								450.4 *
					Mohawkian	Chatfieldian								451.1 *
		Sandbian				Chatfieldian								453
						Turinian								453.7 *
					Whiterockian		Canadian †	Chazyan †/Marmor						457 *
	Middle Ordovician	Darriwilian												458.4
		Dapingian												467.3
		Dapingian				Rangerian								469.1 *
	Early Ordovician	Floian			Ibexian	Blackhillsian		Jeffersonian †	Cassinian †					470
		Floian				Tulean								473.9 *
		Tremadocian				Tulean							Ungurian	477.7
						Stairsian								480.3 *
						Skullrockian			Demingian †					482 *
									Demingian †	Mansian †				483.55 *
Cambrian	Furongian	Stage 10	Niuchehean	Taoyuanian †						Batyrbaian	Tavgian †	Ketyan †/Yurakian	Batyrbaian	485.4
		Stage 10	Niuchehean											487.5
		Jiangshanian	Jiangshanian											489.5
										Aksaian			Aksaian	490.7 *
										Sakian			Sakian	492.2 *
		Paibian	Paibian											494
												Ensyan †/Maduan/Nganasanian		494.7 *
				Waergangian †/Youshuanian								Ensyan †/Maduan/Nganasanian		494.9 *
	Miaolingian	Guzhangian	Guzhangian	Wangcunian †						Ayusokkanian			Ayusokkanian	497
		Guzhangian	Guzhangian							Mayan/Menevian				499.5
		Drumian	Drumian										Zhanaarykian	500.5
		Drumian	Drumian										Tuesaian	503
		Wuliuan	Wuliuan/Taijangian							Amgan/Solvan			Tuesaian	504.5
		Wuliuan	Wuliuan/Taijangian											505.3
	Series 2	Stage 4	Duyunian											509
										Toyonian	Lenian †		Toyonian	510 *
										Botomian			Botomian	512.5 *
		Stage 3	Nangaoian							Botomian			Botomian	514
		Stage 3	Nangaoian							Atdabanian			Atdabanian	515.6 *
	Terreneuvian	Stage 2	Meishucunian							Tommotian			Tommotian	521
		Stage 2								Nemakit-Daldynian				525.5
		Fortunian									Manykaian †			529
		Fortunian	Jinnigian								Manykaian †			530.7
														538.8