PBDB Interval

International Chronostratigraphic Timescale

The interval definitions in this timescale are derived from the following sources:

K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view
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
Z.-X. Qiu and Z.-D. Qiu. 1995. Chronological sequence and subdivision of Chinese Neogene mammalian faunas. Palaeogeography, Palaeoclimatology, Palaeoecology 116(1-2):41-70 view

There are 59 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 126691 collections

Show more time

Show linear time

International Chronostratigraphic Timescale					Cambrian of China		Obsolete Names for ICS Units			Ordovician of China			Neogene Mammal Ages of China
Phanerozoic	Cenozoic	Quaternary	Pleistocene	Late Pleistocene									Nihewanian	0.0117
				Chibanian										0.129
				Calabrian										0.774
				Gelasian										1.8
		Neogene	Pliocene	Piacenzian			Tertiary †						Yushean	2.58
				Zanclean									Yushean	3.6
				Zanclean									Baodean	4.9
			Miocene	Messinian										5.333
				Tortonian										7.246
				Tortonian									Tunggurian	11.1
				Serravallian									Tunggurian	11.63
				Langhian									Shanwangian	13.82
				Burdigalian									Shanwangian	15.98
				Burdigalian									Xiejiaan	16.9
				Aquitanian									Xiejiaan	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
	Mesozoic	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
	Paleozoic	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	Hirnantian	Xiaoxita †/Shikou	Wufeng †			443.8
			Katian	Chientangkiangian		Wufeng †			445.2
			Katian	Neichianshanian/Hanjiang					449.5
			Sandbian	Neichianshanian/Hanjiang			453
		Middle Ordovician	Darriwilian	Darriwilian	Guniu †/Hulo		458.4
			Darriwilian	Darriwilian	Hunjiang †	Dawan †/Daobaowan/Ningkuo	466.3 *
			Dapingian	Dapingian			467.3
		Early Ordovician	Floian	Yiyangian			470
			Tremadocian	Xinchangian			477.7
			Tremadocian	Xinchangian		Lianghekou †	477.9 *
Cambrian		Furongian	Stage 10	Niuchehean	Taoyuanian †	Late Cambrian				485.4
			Jiangshanian	Jiangshanian						489.5
			Paibian	Paibian						494
			Paibian	Paibian	Waergangian †/Youshuanian					494.9 *
		Miaolingian	Guzhangian	Guzhangian	Wangcunian †	Series 3 †				Middle Cambrian	497
			Drumian	Drumian	Wangcunian †						500.5
			Wuliuan	Wuliuan/Taijangian				Stage 5 †			504.5
		Series 2	Stage 4	Duyunian						Early Cambrian	509
		Series 2	Stage 3	Nangaoian							514
		Terreneuvian	Stage 2	Meishucunian							521
			Fortunian	Meishucunian							529
			Fortunian	Jinnigian							530.7
Proterozoic	Neoproterozoic	Ediacaran										Vendian	538.8
		Cryogenian											635
		Tonian											720
		Tonian										Karatau	800
	Mesoproterozoic	Stenian										Karatau	1000
		Stenian										Yurmatian	1100
		Ectasian										Yurmatian	1200
		Ectasian										Burzyan	1375
														1400