PBDB Timescale

Obsolete Names for ICS Units

The interval definitions in this timescale are derived from the following sources:

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
K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
Z.-X. Qiu and Z.-D. Qiu. 1995. Chronological sequence and subdivision of Chinese Neogene mammalian faunas. Palaeogeography, Palaeoclimatology, Palaeoecology 116(1-2):41-70 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 55 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 92 collections

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International Chronostratigraphic Timescale			Obsolete Names for ICS Units			Carboniferous Subepochs	Carboniferous of North America	Neogene Mammal Ages of China	Devonian Subages	Cretaceous-Cenozoic of New Zealand
Quaternary	Holocene	Meghalayan								Wanganui	Haweran	0
		Northgrippian										0.0042
		Greenlandian										0.0082
	Pleistocene	Late Pleistocene						Nihewanian				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 †					Yushean			Mangapanian	2.58
		Piacenzian									Waipipian	3
		Zanclean									Waipipian	3.6
											Opoitian	3.7
								Baodean			Opoitian	4.9
	Miocene	Messinian								Taranaki	Kapitean	5.333
		Messinian									Tongaporutuan	7.2
		Tortonian									Tongaporutuan	7.246
										Southland	Waiauan	11.04
								Tunggurian				11.1
		Serravallian										11.63
		Serravallian									Lillburnian	13.05
		Langhian						Shanwangian			Lillburnian	13.82
											Clifdenian	15.1
										Pareora	Altonian	15.9
		Burdigalian										15.98
								Xiejiaan				16.9
											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
		Induan			251.2
		Induan			Kathwai	251.5 *
Permian	Lopingian	Changhsingian			Kathwai	251.902
						252.4 *
					Chhidru	252.9 *
		Wuchiapingian			Chhidru	Longtanian †	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					Bursumian †	293.52
Carboniferous	Pennsylvanian	Gzhelian					Late Pennsylvanian	Virgilian	298.9
		Kasimovian						Missourian	303.7
		Kasimovian						Desmoinesian	305.9 *
		Moscovian					Middle Pennsylvanian	Desmoinesian	307
		Moscovian					Middle Pennsylvanian	Atokan	312.7 *
		Bashkirian					Early Pennsylvanian	Atokan	315.2
		Bashkirian					Early Pennsylvanian	Morrowan	318.4 *
	Mississippian	Serpukhovian					Late Mississippian	Chesterian	323.2
		Visean					Middle Mississippian	Chesterian	330.9
			Meramecian					335.8 *
			Osagean					343.1 *
		Tournaisian	Osagean				Early Mississippian	346.7
		Tournaisian	Kinderhookian				Early Mississippian	351.9 *
Devonian	Late Devonian	Famennian						Late Famennian	358.9
								Middle Famennian	365.3 *
								Early Famennian	368.5 *
		Frasnian						Late Frasnian	372.2
								Middle Frasnian	375.4 *
								Early Frasnian	379.3 *
	Middle Devonian	Givetian						Late Givetian	382.7
								Middle Givetian	383.7 *
								Early Givetian	385.9 *
		Eifelian						Late Eifelian	387.7
		Eifelian						Early Eifelian	390.3 *
	Early Devonian	Emsian						Late Emsian	393.3
		Emsian						Early Emsian	398.3 *
		Pragian						Pragian	407.6
		Lochkovian						Late Lochkovian	410.8
								Middle Lochkovian	412.8 *
				Early Lochkovian				415.6 *
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