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
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
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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			Neogene Mammal Ages of China	Devonian Subages	Devonian of France	Cretaceous-Cenozoic of New Zealand		Carboniferous of Western Europe
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
	Early Triassic	Induan			251.2
Permian	Lopingian	Changhsingian			251.902
	Lopingian	Wuchiapingian			Longtanian †		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	Late Famennian				Famennian		358.9
			Middle Famennian						365.3 *
			Early Famennian						368.5 *
		Frasnian	Late Frasnian				Frasnian		372.2
			Middle Frasnian						375.4 *
			Early Frasnian						379.3 *
	Middle Devonian	Givetian	Late Givetian				Givetian		Srbsko	382.7
			Middle Givetian							383.7 *
			Early Givetian							385.9 *
		Eifelian	Late Eifelian				Couvinien		Chotec	387.7
		Eifelian	Early Eifelian						Chotec	390.3 *
	Early Devonian	Emsian	Late Emsian	Daleje/Zlichovian					393.3
		Emsian	Early Emsian	Daleje/Zlichovian					398.3 *
		Pragian	Pragian	Pragian					407.6
		Pragian	Pragian	Pragian			Coblencien		408.2 *
		Lochkovian	Late Lochkovian	Gedinnine			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			Franconian †/Dresbachian/Millardan				485.4
		Stage 10							Sunwaptan	487.5
		Jiangshanian							Sunwaptan	489.5
		Jiangshanian							Steptoean	493 *
		Paibian							Steptoean	494
	Miaolingian	Guzhangian			Series 3 †				Marjumian	Albertian †	497
		Drumian							Marjumian		500.5
		Wuliuan							Stage 5 †		Topazan	504.5
		Wuliuan							Stage 5 †		Delamaran	506.5
	Series 2	Stage 4								Waucoban †	Delamaran	509
		Stage 4									Dyeran	511 *
		Stage 3									Dyeran	514
											Montezuman	514.8 *
											Begadean	519.9 *
	Terreneuvian	Stage 2										521
	Terreneuvian	Fortunian										529
													538.8