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
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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view

There are 59 timescales which overlap this one. show

Interval names marked with † are no longer in current use.

This timescale is used in the definition of 126691 collections

International Chronostratigraphic Timescale					Permian Subages of Germany	Devonian of Eastern North America		Precambrian of Russia	Obsolete Names for ICS Units
Phanerozoic	Cenozoic	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
	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	Buntsandstein							251.902
			Lopingian	Wuchiapingian	Buntsandstein					Longtanian †		254.14
			Guadalupian	Capitanian	Ohre/Aller							259.51
				Wordian	Leine							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		Conewangan/Conneautan/Canadaway						358.9
Frasnian			Late Devonian	West Fallsian/Sonyean		372.2
Middle Devonian			Givetian	Geneseean/Taghanican/Tioughniogan		Cazenovian	382.7
Middle Devonian			Eifelian	Southwoodian		Cazenovian	387.7
Early Devonian			Emsian	Sawkillian/Deer Parkian		Helderbergian	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				443.8
			Katian				445.2
			Sandbian				453
		Middle Ordovician	Darriwilian				458.4
		Middle Ordovician	Dapingian				467.3
		Early Ordovician	Floian				470
		Early Ordovician	Tremadocian				477.7
Cambrian		Furongian	Stage 10				485.4
			Jiangshanian				489.5
			Paibian				494
		Miaolingian	Guzhangian				Series 3 †	497
			Drumian					500.5
			Wuliuan					Stage 5 †	504.5
		Series 2	Stage 4						509
		Series 2	Stage 3						514
		Terreneuvian	Stage 2						521
		Terreneuvian	Fortunian						529
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