PBDB Timescale

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
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
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 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 126778 collections

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International Chronostratigraphic Timescale			Cretaceous-Cenozoic of New Zealand		Carboniferous of Western Europe		Silurian of the Baltic
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		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			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
		Asselian			Kuzel	297.7
Carboniferous	Pennsylvanian	Gzhelian			Kuzel	298.9
					Stephanian	Stephanian C	300.3 *
						Stephanian B	300.9 *
						Stephanian A	301.4 *
		Kasimovian				Stephanian A	303.7
		Kasimovian				Cantabrian	305 *
		Moscovian				Cantabrian	307
					Westphalian	Westphalian D	307.4 *
						Westphalian C	309.8
						Westphalian B	314.6
		Bashkirian				Westphalian B	315.2
						Westphalian A	317 *
					Namurian	Yeadonian	318.8 *
						Marsdenian	320.2 *
						Kinderscoutian	321.5 *
						Alportian	322 *
						Chokierian	323.1 *
	Mississippian	Serpukhovian				Chokierian	323.2
						Arnsbergian	324 *
						Pendleian	327.4 *
		Visean			Warnantian	Brigantian †	330.9
					Livian	Asbian †	336.3 *
					Moliniacian	Holkerian †/Arundian/Chadian	340.2 *
		Tournaisian			Ivorian		346.7
		Tournaisian			Hastarian		353.7 *
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			Ohesaare			419.2
	Pridoli			Kaugetuma			421.7 *
	Ludlow	Ludfordian		Kuressaare			423
		Ludfordian		Paadla			423.4 *
		Gorstian	425.6	Paadla
	Wenlock	Homerian	Rootsikula	427.4
		Homerian	Jaagarahu	429.2 *
		Sheinwoodian	Jaagarahu	430.5
		Sheinwoodian	Jaani	431.8 *
	Llandovery	Telychian	Jaani	433.4
		Telychian	Adavere	434 *
		Aeronian	Adavere	438.5
		Aeronian	Raikkula	439.4 *
		Rhuddanian	Raikkula	440.8
		Rhuddanian	Juuru	441.4 *
								443.8