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
K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. 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		Ordovician of Britain				Obsolete Names for ICS Units			Cambrian of Britain		Ordovician of North America					Cambrian of Siberia
Neogene	Pliocene	Piacenzian							Tertiary †													2.58
	Pliocene	Zanclean																				3.6
	Miocene	Messinian																				5.333
		Tortonian																				7.246
		Serravallian																				11.63
		Langhian																				13.82
		Burdigalian																				15.98
		Aquitanian																				20.44
Paleogene	Oligocene	Chattian																				23.03
	Oligocene	Rupelian																				27.82
	Eocene	Priabonian																				33.9
		Bartonian																				37.71
		Lutetian																				41.2
		Ypresian																				47.8
	Paleocene	Thanetian																				56
		Selandian																				59.2
		Danian																				61.6
Cretaceous	Late Cretaceous	Maastrichtian																				66
		Campanian																				72.1
		Santonian																				83.6
		Coniacian																				86.3
		Turonian																				89.8
		Cenomanian																				93.9
	Early Cretaceous	Albian																				100.5
		Aptian																				113
		Barremian																				121.4
		Hauterivian																				125.77
		Valanginian																				132.6
		Berriasian																				139.8
Jurassic	Late Jurassic	Tithonian																				145
		Kimmeridgian																				149.2
		Oxfordian																				154.8
	Middle Jurassic	Callovian																				161.5
		Bathonian																				165.3
		Bajocian																				168.2
		Aalenian																				170.9
	Early Jurassic	Toarcian																				174.7
		Pliensbachian																				184.2
		Sinemurian																				192.9
		Hettangian																				199.5
Triassic	Late Triassic	Rhaetian																				201.4
		Norian																				208.5
		Carnian																				227
	Middle Triassic	Ladinian																				237
	Middle Triassic	Anisian																				242
	Early Triassic	Olenekian																				247.2
	Early Triassic	Induan																				251.2
Permian	Lopingian	Changhsingian																				251.902
	Lopingian	Wuchiapingian								Longtanian †												254.14
	Guadalupian	Capitanian																				259.51
		Wordian																				264.28
		Roadian																				266.9
	Cisuralian	Kungurian																				273.01
		Artinskian																				283.5
		Sakmarian																				290.1
		Asselian																				293.52
Carboniferous	Pennsylvanian	Gzhelian																				298.9
		Kasimovian																				303.7
		Moscovian																				307
		Bashkirian																				315.2
	Mississippian	Serpukhovian																				323.2
		Visean																				330.9
		Tournaisian																				346.7
Devonian	Late Devonian	Famennian																				358.9
	Late Devonian	Frasnian	372.2
	Middle Devonian	Givetian	382.7
	Middle Devonian	Eifelian	387.7
	Early Devonian	Emsian	393.3
		Pragian	407.6
		Lochkovian	410.8
Silurian	Pridoli		419.2
	Ludlow	Ludfordian	423
	Ludlow	Gorstian	425.6
	Wenlock	Homerian	427.4
	Wenlock	Sheinwoodian	430.5
	Llandovery	Telychian	433.4
		Aeronian	438.5
		Rhuddanian	440.8
Ordovician	Late Ordovician	Hirnantian	Ashgill	Hirnantian	Cincinnatian	Gamachian	443.8
		Katian		Rawtheyan		Gamachian	445.2
				Rawtheyan		Richmondian	446 *
				Cautleyan			448.9 *
				Pusgillian			449.3 *
			Caradoc	Streffordian			Onnian †	449.6 *
						Maysvillian		Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
						Edenian			450.4 *
					Mohawkian	Chatfieldian			451.1 *
				Cheneyan					451.5 *
				Burrellian					452.7 *
		Sandbian							453
							Actonian †		453.2 *
						Turinian	Actonian †		453.7 *
							Marshbrookian †		Woolstonian †		454.2 *
							Longvillian †				455.2 *
				Aurelucian							456.8 *
					Whiterockian			Canadian †			Chazyan †/Marmor	457 *
							Soudleyan †/Harnagian/Costonian					457.4 *
	Middle Ordovician	Darriwilian	Llanvirn	Llandeilian/Llandeilo/Late Llandeilo/Middle Llandeilo/Early Llandeilo/Late Llanvirn								458.4
		Darriwilian		Abereiddian/Early Llanvirn								461.3 *
		Dapingian		Abereiddian/Early Llanvirn								467.3
			Arenig	Fennian								468.4 *
						Rangerian						469.1 *
	Early Ordovician	Floian			Ibexian	Blackhillsian					Jeffersonian †	Cassinian †	470
				Whitlandian		Blackhillsian							471.1 *
				Whitlandian		Tulean							473.9 *
				Moridunian									474.3 *
		Tremadocian	Tremadoc	Migneintian									Ungurian	477.7
				Migneintian		Stairsian								480.3 *
				Cressagian		Stairsian								480.8 *
						Skullrockian						Demingian †		482 *
														Mansian †	483.55 *
														Mansian †	485 *
Cambrian	Furongian	Stage 10						Niuchehean			Taoyuanian †	Merioneth	Dolgellian/Trempealeauan			Batyrbaian	Tavgian †	Ketyan †/Yurakian	Batyrbaian	485.4
										487.5			Dolgellian/Trempealeauan
										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 †	Series 3 †	St Davids				Ayusokkanian			Ayusokkanian	497
		Guzhangian						Guzhangian								Mayan/Menevian				499.5
		Drumian						Drumian											Zhanaarykian	500.5
		Drumian						Drumian											Tuesaian	503
		Wuliuan						Wuliuan/Taijangian								Stage 5 †			Tuesaian	Amgan/Solvan	504.5
		Wuliuan						Wuliuan/Taijangian								Stage 5 †					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