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
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
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		Cambrian of Britain		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 †	Merioneth	Dolgellian/Trempealeauan						Batyrbaian	Tavgian †	Ketyan †/Yurakian	Batyrbaian	485.4
						Dolgellian/Trempealeauan										487.5
						Festiniogian										489.2 *
		Jiangshanian	Jiangshanian													489.5
												Aksaian			Aksaian	490.7 *
												Sakian			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							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		Caerfai											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