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
M. Harzhauser and W. E. Piller. 2004. Integrated stratigraphy of the Sarmatian (Upper Middle Miocene) in the western Central Paratethys. Stratigraphy 1(1):65-86 view
F. M. Gradstein, F. P. Agterberg, J. G. Ogg, J. Hardenbol, P. Van Veen, J. Thierry, and Z. Huang. 1995. A Triassic, Jurassic, and Cretaceous time scale. SEPM Special Publication 54 view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
J. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 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 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		Central Paratethys Stages	Mesozoic Subages		Cretaceous Subepochs	Permian of the Salt Range
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	Pannonian					7.246
		Tortonian	Southland	Waiauan	Pannonian					11.04
		Serravallian			Sarmatian					11.63
					Badenian					12.8 *
				Lillburnian	Badenian					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		Late Maastrichtian/Early Maastrichtian		Senonian		66
		Campanian		Haumurian		Late Campanian/Middle Campanian/Early Campanian				72.1
		Santonian		Piripauan		Late Santonian/Middle Santonian/Early Santonian				83.6
		Santonian	Raukumara	Teratan		Late Santonian/Middle Santonian/Early Santonian				86.1
		Coniacian				Late Coniacian/Middle Coniacian/Early Coniacian				86.3
		Turonian				Late Turonian/Middle Turonian/Early Turonian				89.8
				Mangaotanean						90.5
				Arowhanan						93.7
		Cenomanian		Arowhanan		Late Cenomanian/Middle Cenomanian/Early Cenomanian				93.9
			Clarence	Ngaterian						95.2
				Motuan						99.5
	Early Cretaceous	Albian		Motuan		Late Albian		Gallic		100.5
				Urutawan		Late Albian				103.3
				Urutawan		Middle Albian				106.2 *
			Taitai	Korangan		Middle Albian				108.4
						Early Albian				109.9 *
		Aptian				Late Aptian				113
						Late Aptian				117.5
						Early Aptian	119.5 *
		Barremian				Late Barremian/Early Barremian	121.4
		Hauterivian				Late Hauterivian/Early Hauterivian	Neocomian	125.77
		Valanginian				Late Valanginian/Early Valanginian		132.6
		Berriasian				Late Berriasian		139.8
						Middle Berriasian		140.6 *
						Early Berriasian		142.7 *
Jurassic	Late Jurassic	Tithonian				Late Tithonian	Middle Tithonian		145
		Tithonian				Early Tithonian	Middle Tithonian		146.3 *
		Kimmeridgian				Late Kimmeridgian			149.2
		Kimmeridgian				Early Kimmeridgian			152.2 *
		Oxfordian				Late Oxfordian	Middle Oxfordian/Early Oxfordian		154.8
		Oxfordian					Middle Oxfordian/Early Oxfordian		157.9 *
	Middle Jurassic	Callovian				Late Callovian/Middle Callovian/Early Callovian			161.5
		Bathonian				Late Bathonian/Middle Bathonian/Early Bathonian			165.3
		Bajocian				Late Bajocian			168.2
		Bajocian				Early Bajocian			168.6 *
		Aalenian				Late Aalenian/Middle Aalenian/Early Aalenian			170.9
	Early Jurassic	Toarcian				Late Toarcian			174.7
						Middle Toarcian			180.4 *
						Early Toarcian			182.9 *
		Pliensbachian			Late Pliensbachian/Early Pliensbachian	184.2
		Sinemurian			Late Sinemurian/Early Sinemurian	192.9
		Hettangian			Late Hettangian/Middle Hettangian/Early Hettangian	199.5
Triassic	Late Triassic	Rhaetian				201.4
		Norian			Sevatian	208.5
					Alaunian	213.2 *
					Lacian	216.7 *
		Carnian			Tuvalian	227
		Carnian			Julian	233.4 *
	Middle Triassic	Ladinian			Longobardian	237
		Ladinian			Fassanian	239.7 *
		Anisian			Illyrian	242
					Pelsonian	243.8 *
					Bithynian	244.7 *
					Aegean	245.5 *
	Early Triassic	Olenekian			Spathian	247.2
		Olenekian			Smithian	248.9 *
		Induan			Dienerian	251.2
					Griesbachian	251.4 *
					Griesbachian	Kathwai			251.5 *
Permian	Lopingian	Changhsingian				Kathwai			251.902
									252.4 *
						Chhidru			252.9 *
		Wuchiapingian				Chhidru			254.14
						Kalabagh			255 *
						Wargal			256 *
	Guadalupian	Capitanian							259.51
		Wordian							264.28
									265.3 *
						Amb			266.1 *
		Roadian				Amb			266.9
		Roadian							270.7 *
	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	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	Franconian †/Dresbachian/Millardan	485.4
		Stage 10		Sunwaptan			487.5
		Jiangshanian		Sunwaptan			489.5
		Jiangshanian		Steptoean			493 *
		Paibian		Steptoean			494
	Miaolingian	Guzhangian	Marjumian	Albertian †			497
		Drumian	Marjumian				500.5
		Wuliuan	Topazan				504.5
		Wuliuan	Delamaran				506.5
	Series 2	Stage 4	Delamaran	Waucoban †			509
		Stage 4	Dyeran				511 *
		Stage 3	Dyeran				514
			Montezuman				514.8 *
			Begadean				519.9 *
	Terreneuvian	Stage 2					521
	Terreneuvian	Fortunian					529
										538.8