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, 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

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			Obsolete Carboniferous Ages of China	Cambrian Epochs	Cenozoic Subepochs	Obsolete Names for ICS Units
Quaternary	Pleistocene	Late Pleistocene			Late Pleistocene			0.0117
		Chibanian			Middle Pleistocene			0.129
		Calabrian			Early Pleistocene			0.774
		Gelasian			Early Pleistocene			1.8
Neogene	Pliocene	Piacenzian			Late Pliocene	Tertiary †		2.58
	Pliocene	Zanclean			Early Pliocene			3.6
	Miocene	Messinian			Late Miocene			5.333
		Tortonian			Late Miocene			7.246
		Serravallian			Middle Miocene			11.63
		Langhian			Middle Miocene			13.82
		Burdigalian			Early Miocene			15.98
		Aquitanian			Early Miocene			20.44
Paleogene	Oligocene	Chattian			Late Oligocene			23.03
	Oligocene	Rupelian			Early Oligocene			27.82
	Eocene	Priabonian			Late Eocene			33.9
		Bartonian			Middle Eocene			37.71
		Lutetian			Middle Eocene			41.2
		Ypresian			Early Eocene			47.8
	Paleocene	Thanetian			Late Paleocene			56
		Selandian			Middle Paleocene			59.2
		Danian			Early Paleocene			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	Mapingian †					298.9
		Kasimovian	Mapingian †					303.7
		Kasimovian						305.9
		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		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		Late Cambrian	485.4
		Jiangshanian			489.5
		Paibian			494
	Miaolingian	Guzhangian		Middle Cambrian	Series 3 †	497
		Drumian				500.5
		Wuliuan				Stage 5 †	504.5
	Series 2	Stage 4		Early Cambrian			509
	Series 2	Stage 3					514
	Terreneuvian	Stage 2					521
	Terreneuvian	Fortunian					529
								538.8