PBDB Timescale

Cambrian of Kazakhstan

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
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

There are 15 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 30 collections

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International Chronostratigraphic Timescale			Cambrian of Kazakhstan	Ordovician of North America					Ordovician of Ibero-Bohemia
Ordovician	Late Ordovician	Hirnantian		Cincinnatian	Gamachian				Kosovian				443.8
		Katian			Gamachian				Kralodvorian	Bohdalec †			445.2
					Richmondian				Kralodvorian				446 *
					Richmondian				Berounian				449.7 *
					Maysvillian	Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian							449.8 *
					Edenian								450.4 *
				Mohawkian	Chatfieldian								451.1 *
		Sandbian			Chatfieldian								453
					Turinian								453.7 *
					Turinian						Zahorany †/Vinice	Letna †	456.2 *
				Whiterockian		Canadian †	Chazyan †/Marmor				Zahorany †/Vinice		457 *
										Liben †			458 *
	Middle Ordovician	Darriwilian											458.4
									Dobrotivian				458.5 *
									Oretanian				459.7 *
										Sarka †			461.7 *
		Dapingian								Klabava †			467.3
									Arenigian				468
					Rangerian								469.1 *
	Early Ordovician	Floian		Ibexian	Blackhillsian		Jeffersonian †	Cassinian †					470
		Floian			Tulean								473.9 *
		Tremadocian	Ungurian		Tulean				Tremadocian				477.7
					Stairsian								480.3 *
					Skullrockian			Demingian †					482 *
Cambrian	Furongian	Stage 10	Batyrbaian		Skullrockian								485.4
		Stage 10											487.5
		Jiangshanian											489.5
			Aksaian										490.7 *
			Sakian										492.2 *
		Paibian	Sakian										494
	Miaolingian	Guzhangian	Ayusokkanian										497
		Guzhangian											499.5
		Drumian	Zhanaarykian										500.5
		Drumian	Tuesaian										503
		Wuliuan	Tuesaian										504.5
		Wuliuan											505.3
	Series 2	Stage 4											509
			Toyonian										510 *
			Botomian										512.5 *
		Stage 3	Botomian										514
		Stage 3	Atdabanian										515.6 *
	Terreneuvian	Stage 2	Tommotian										521
													525.5