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, 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
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 127969 collections

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International Chronostratigraphic Timescale			Cretaceous-Cenozoic of New Zealand		Mesozoic Subages		Obsolete Carboniferous Ages 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		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	Late Maastrichtian/Early Maastrichtian			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			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	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					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
Carboniferous	Pennsylvanian	Kasimovian					Mapingian †	303.7
								305.9