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
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
M. Freudenthal. 2006. Mammal Paleogene zones. personal communication 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

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			Cretaceous-Cenozoic of New Zealand		Mesozoic Subages		Carboniferous of China	Mammal Paleogene Zones		Central Paratethys Stages	Ten Million Year Bins
Quaternary	Holocene	Meghalayan				Wanganui	Haweran							Cenozoic 6	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	Tertiary †				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	Cenozoic 5	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				MP 30/MP 29/MP 28/MP 27/MP 26	MP 25		Cenozoic 4	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			Cenozoic 3	33.9
						Arnold	Runangan								34.6
							Kaiatan								36.7
		Bartonian					Kaiatan				MP 16				37.71
		Bartonian					Bortonian				MP 16				39.1
		Lutetian					Bortonian				MP 15/MP 14/MP 13/MP 12/MP 11			Cenozoic 2	41.2
						Dannevirke	Porangan								42.6
							Heretaungan								45.7
		Ypresian					Heretaungan				MP 10/MP 8 + 9/MP 7				47.8
							Mangaorapan								48.9
							Waipawan								52
	Paleocene	Thanetian					Teurian				MP 6	MP 1 - 5		Cenozoic 1	56
		Selandian													59.2
		Danian													61.6
Cretaceous	Late Cretaceous	Maastrichtian				Mata	Haumurian	Late Maastrichtian/Early Maastrichtian						Cretaceous 8	66
		Campanian					Haumurian	Late Campanian/Middle Campanian/Early Campanian						Cretaceous 7	72.1
		Santonian					Piripauan	Late Santonian/Middle Santonian/Early Santonian						Cretaceous 6	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						Cretaceous 5	93.9
						Clarence	Ngaterian								95.2
							Motuan								99.5
	Early Cretaceous	Albian					Motuan	Late Albian						Cretaceous 4	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						Cretaceous 3	113
								Late Aptian							117.5
				Early Aptian	119.5 *
		Barremian		Late Barremian/Early Barremian	Cretaceous 2			121.4
		Hauterivian		Late Hauterivian/Early Hauterivian	Cretaceous 2			125.77
		Valanginian		Late Valanginian/Early Valanginian	Cretaceous 1			132.6
		Berriasian		Late Berriasian				139.8
				Middle Berriasian				140.6 *
				Early Berriasian				142.7 *
Jurassic	Late Jurassic	Tithonian			Late Tithonian	Middle Tithonian		Jurassic 6	145
		Tithonian			Early Tithonian	Middle Tithonian		Jurassic 6	146.3 *
		Kimmeridgian			Late Kimmeridgian			Jurassic 5	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			Jurassic 4	165.3
		Bajocian			Late Bajocian				168.2
		Bajocian			Early Bajocian				168.6 *
		Aalenian			Late Aalenian/Middle Aalenian/Early Aalenian			Jurassic 3	170.9
	Early Jurassic	Toarcian			Late Toarcian				174.7
					Middle Toarcian				180.4 *
					Early Toarcian				182.9 *
		Pliensbachian			Late Pliensbachian/Early Pliensbachian			Jurassic 2	184.2
		Sinemurian			Late Sinemurian/Early Sinemurian			Jurassic 1	192.9
		Hettangian			Late Hettangian/Middle Hettangian/Early Hettangian			Jurassic 1	199.5
Triassic	Late Triassic	Rhaetian						Triassic 4	201.4
		Norian			Sevatian				208.5
					Alaunian				213.2 *
					Lacian				216.7 *
		Carnian			Tuvalian			Triassic 3	227
		Carnian			Julian			Triassic 3	233.4 *
	Middle Triassic	Ladinian			Longobardian			Triassic 2	237
		Ladinian			Fassanian				239.7 *
		Anisian			Illyrian				242
					Pelsonian				243.8 *
					Bithynian				244.7 *
					Aegean				245.5 *
	Early Triassic	Olenekian			Spathian			Triassic 1	247.2
		Olenekian			Smithian				248.9 *
		Induan			Dienerian				251.2
		Induan			Griesbachian				251.4 *
Permian	Lopingian	Changhsingian						Permian 4	251.902
	Lopingian	Wuchiapingian							Longtanian †	254.14
	Guadalupian	Capitanian								259.51
		Wordian								264.28
		Roadian						Permian 3		266.9
	Cisuralian	Kungurian						Permian 2		273.01
		Artinskian	283.5
		Sakmarian	290.1
		Asselian	Permian 1					293.52
Carboniferous	Pennsylvanian	Gzhelian	Carboniferous 5					298.9
		Gzhelian						Xiaodushanian		300 *
		Kasimovian						Xiaodushanian		303.7
		Kasimovian						Dalaun		305.8 *
		Moscovian	Carboniferous 4							307
		Bashkirian								315.2
								Huashibanian		318.5 *
								Lousuan		321.2 *
	Mississippian	Serpukhovian	Dewunian					Carboniferous 3		323.2
		Serpukhovian	Shangsian					Carboniferous 3		330.8 *
		Visean	Shangsian					Carboniferous 2		330.9
		Visean	Jiusian					Carboniferous 2		335 *
		Tournaisian	Tangbagouan					Carboniferous 1		346.7
Devonian	Late Devonian	Famennian						Devonian 5		358.9
	Late Devonian	Frasnian					Devonian 4	372.2
	Middle Devonian	Givetian					Devonian 3	382.7
	Middle Devonian	Eifelian					Devonian 3	387.7
	Early Devonian	Emsian					Devonian 2	393.3
		Pragian					Devonian 1	407.6
		Lochkovian					Devonian 1	410.8
Silurian	Pridoli						Silurian 2	419.2
	Ludlow	Ludfordian						423
	Ludlow	Gorstian		425.6
	Wenlock	Homerian		Gleedonian				427.4
		Homerian		Whitwellian				429.7 *
		Sheinwoodian						430.5
	Llandovery	Telychian					Silurian 1	433.4
		Aeronian						438.5
		Rhuddanian				440.8
Ordovician	Late Ordovician	Hirnantian				Ordovician 5	443.8
		Katian				Ordovician 5	445.2
		Sandbian				Ordovician 4	453
	Middle Ordovician	Darriwilian				Ordovician 3	458.4
	Middle Ordovician	Dapingian				Ordovician 2	467.3
	Early Ordovician	Floian				Ordovician 2	470
	Early Ordovician	Tremadocian				Ordovician 1	Ungurian	477.7
Cambrian	Furongian	Stage 10				Cambrian 5	Batyrbaian	485.4
		Jiangshanian					Batyrbaian	489.5
							Aksaian	490.7 *
							Sakian	492.2 *
		Paibian					Sakian	494
	Miaolingian	Guzhangian				Series 3 †	Cambrian 4	Ayusokkanian		497
		Guzhangian								499.5
		Drumian						Zhanaarykian		500.5
		Drumian						Tuesaian		503
		Wuliuan					Stage 5 †	Tuesaian	Cambrian 3	504.5
		Wuliuan					Stage 5 †			505.3
	Series 2	Stage 4								509
								Toyonian		510 *
								Botomian		512.5 *
		Stage 3						Botomian	Cambrian 2	514
		Stage 3						Atdabanian		515.6 *
	Terreneuvian	Stage 2						Tommotian		521
		Stage 2								525.5
		Fortunian							Cambrian 1	529
															538.8