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
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
M. Freudenthal. 2006. Mammal Paleogene zones. personal communication 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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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
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
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

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 126844 collections

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International Chronostratigraphic Timescale			Central Paratethys Stages	Mammal Paleogene Zones		Cambrian of North America		Mesozoic Subages		Silurian of North America		Cretaceous-Cenozoic of New Zealand		Cretaceous Subepochs
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	Pannonian										Tongaporutuan		7.246
		Tortonian	Pannonian									Southland	Waiauan		11.04
		Serravallian	Sarmatian												11.63
			Badenian												12.8 *
			Badenian										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		MP 30/MP 29/MP 28/MP 27/MP 26	MP 25								Waitakian		23.03
													Duntroonian		25.2
													Whaingaroan		27.3
		Rupelian		MP 24/MP 23/MP 22/MP 21											27.82
	Eocene	Priabonian		MP 20/MP 19/MP 18/MP 17B/MP 17A											33.9
												Arnold	Runangan		34.6
													Kaiatan		36.7
		Bartonian		MP 16									Kaiatan		37.71
		Bartonian		MP 16									Bortonian		39.1
		Lutetian		MP 15/MP 14/MP 13/MP 12/MP 11									Bortonian		41.2
												Dannevirke	Porangan		42.6
													Heretaungan		45.7
		Ypresian		MP 10/MP 8 + 9/MP 7									Heretaungan		47.8
													Mangaorapan		48.9
													Waipawan		52
	Paleocene	Thanetian		MP 6	MP 1 - 5								Teurian		56
		Selandian													59.2
		Danian													61.6
Cretaceous	Late Cretaceous	Maastrichtian						Late Maastrichtian/Early Maastrichtian				Mata	Haumurian	Senonian	66
		Campanian						Late Campanian/Middle Campanian/Early Campanian					Haumurian		72.1
		Santonian						Late Santonian/Middle Santonian/Early Santonian					Piripauan		83.6
		Santonian						Late Santonian/Middle Santonian/Early Santonian				Raukumara	Teratan		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						Late Cenomanian/Middle Cenomanian/Early Cenomanian					Arowhanan		93.9
												Clarence	Ngaterian		95.2
													Motuan		99.5
	Early Cretaceous	Albian						Late Albian					Motuan	Gallic	100.5
								Late Albian					Urutawan		103.3
								Middle Albian					Urutawan		106.2 *
								Middle Albian				Taitai	Korangan		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
		Induan	Griesbachian			251.4 *
Permian	Lopingian	Changhsingian				251.902
	Lopingian	Wuchiapingian				Zechstein				254.14
	Guadalupian	Capitanian				Rotliegendes				259.51
		Wordian								264.28
		Roadian		266.9
	Cisuralian	Kungurian		273.01
		Artinskian		Autunian	283.5
		Sakmarian			290.1
		Asselian			293.52
Carboniferous	Pennsylvanian	Gzhelian			Late Pennsylvanian	298.9
		Kasimovian			Late Pennsylvanian	303.7
		Moscovian			Middle Pennsylvanian	307
		Bashkirian			Early Pennsylvanian	315.2
	Mississippian	Serpukhovian			Late Mississippian	323.2
		Visean			Middle Mississippian	330.9
		Tournaisian			Early Mississippian	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					Cayugan				419.2
	Pridoli					Niagaran				422.5 *
	Ludlow	Ludfordian								423
	Ludlow	Gorstian								425.6
	Wenlock	Homerian								Lockportian	427.4
	Wenlock	Sheinwoodian									430.5
	Llandovery	Telychian								Ontarian	433.4
		Aeronian									438.5
								Alexandrian	438.7 *
						Medinan			Clinton	440.1 *
										440.7 *
		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