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
J. I. Raine, A. G. Beu, A. F. Boyes, H. J. Campbell, R. A. Cooper, J. S. Crampton, M. P. Crundwell, C. J. Hollis, and H. E. G. Morgans. 2015. Revised Calibration of the New Zealand Geological Timescale: NZGT2015/1. GNS Science Report 2012(39) view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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 126606 collections

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International Chronostratigraphic Timescale			Obsolete Names for ICS Units			Cretaceous-Cenozoic of New Zealand		Carboniferous of China
Quaternary	Holocene	Meghalayan				Wanganui	Haweran		0
		Northgrippian							0.0042
		Greenlandian							0.0082
	Pleistocene	Late Pleistocene							0.0117
		Chibanian							0.129
		Chibanian					Castlecliffian		0.34
		Calabrian					Castlecliffian		0.774
		Calabrian					Nukumaruan		1.63
		Gelasian					Nukumaruan		1.8
		Gelasian					Mangapanian		2.4
Neogene	Pliocene	Piacenzian	Tertiary †				Mangapanian		2.58
		Piacenzian					Waipipian		3
		Zanclean					Waipipian		3.6
		Zanclean					Opoitian		3.7
	Miocene	Messinian				Taranaki	Kapitean		5.333
		Messinian					Tongaporutuan		7.2
		Tortonian					Tongaporutuan		7.246
		Tortonian				Southland	Waiauan		11.04
		Serravallian					Waiauan		11.63
		Serravallian					Lillburnian		13.05
		Langhian					Lillburnian		13.82
							Clifdenian		15.1
						Pareora	Altonian		15.9
		Burdigalian					Altonian		15.98
		Burdigalian					Otaian		18.7
		Aquitanian					Otaian		20.44
		Aquitanian				Landon	Waitakian		21.7
Paleogene	Oligocene	Chattian					Waitakian		23.03
							Duntroonian		25.2
							Whaingaroan		27.3
		Rupelian							27.82
	Eocene	Priabonian							33.9
						Arnold	Runangan		34.6
							Kaiatan		36.7
		Bartonian					Kaiatan		37.71
		Bartonian					Bortonian		39.1
		Lutetian					Bortonian		41.2
						Dannevirke	Porangan		42.6
							Heretaungan		45.7
		Ypresian					Heretaungan		47.8
							Mangaorapan		48.9
							Waipawan		52
	Paleocene	Thanetian					Teurian		56
		Selandian							59.2
		Danian							61.6
Cretaceous	Late Cretaceous	Maastrichtian				Mata	Haumurian		66
		Campanian					Haumurian		72.1
		Santonian					Piripauan		83.6
		Santonian				Raukumara	Teratan		86.1
		Coniacian							86.3
		Turonian							89.8
							Mangaotanean		90.5
							Arowhanan		93.7
		Cenomanian					Arowhanan		93.9
						Clarence	Ngaterian		95.2
							Motuan		99.5
	Early Cretaceous	Albian					Motuan		100.5
							Urutawan		103.3
						Taitai	Korangan		108.4
		Aptian					Korangan		113
		Aptian							117.5
		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
		Gzhelian				Xiaodushanian		300 *
		Kasimovian				Xiaodushanian		303.7
		Kasimovian				Dalaun		305.8 *
		Moscovian						307
		Bashkirian						315.2
						Huashibanian		318.5 *
						Lousuan		321.2 *
	Mississippian	Serpukhovian				Dewunian		323.2
		Serpukhovian				Shangsian		330.8 *
		Visean				Shangsian		330.9
		Visean				Jiusian		335 *
		Tournaisian				Tangbagouan		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	485.4
		Jiangshanian	489.5
		Paibian	494
	Miaolingian	Guzhangian	Series 3 †	497
		Drumian		500.5
		Wuliuan		Stage 5 †	504.5
									509