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, 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
M. Kretzoi. 1942. Necroteuthis n. g. (Ceph. Dibr., Necroteuthidae N. F.) aus dem Oligozän von Budapest und das system der Dibranchiata. Földtani Közlöny 72:125-238 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			Permian-Jurassic of New Zealand		Cenozoic Subepochs	Ordovician of North America					Silurian of North America
Quaternary	Pleistocene	Late Pleistocene						Late Pleistocene							0.0117
		Chibanian						Middle Pleistocene							0.129
		Calabrian						Early Pleistocene							0.774
		Gelasian						Early Pleistocene							1.8
Neogene	Pliocene	Piacenzian	Tertiary †					Late Pliocene							2.58
	Pliocene	Zanclean						Early Pliocene							3.6
	Miocene	Messinian						Late Miocene							5.333
		Tortonian						Late Miocene							7.246
		Serravallian						Middle Miocene							11.63
		Langhian						Middle Miocene							13.82
		Burdigalian						Early Miocene							15.98
		Aquitanian						Early Miocene							20.44
Paleogene	Oligocene	Chattian						Late Oligocene							23.03
	Oligocene	Rupelian						Early Oligocene							27.82
	Eocene	Priabonian						Late Eocene							33.9
		Bartonian						Middle Eocene							37.71
		Lutetian						Middle Eocene							41.2
		Ypresian						Early Eocene							47.8
	Paleocene	Thanetian						Late Paleocene							56
		Selandian						Middle Paleocene							59.2
		Danian						Early Paleocene							61.6
Cretaceous	Late Cretaceous	Maastrichtian													66
		Campanian													72.1
		Santonian													83.6
		Coniacian													86.3
		Turonian													89.8
		Cenomanian													93.9
	Early Cretaceous	Albian													100.5
		Aptian													113
		Barremian													121.4
		Hauterivian													125.77
		Valanginian													132.6
		Berriasian													139.8
Jurassic	Late Jurassic	Tithonian				Oteke	Puaroan								145
		Kimmeridgian				Oteke	Puaroan								149.2
						Kawhia	Ohauan								150
							Heterian								154.5
		Oxfordian													154.8
	Middle Jurassic	Callovian													161.5
		Callovian					Temaikan								164.3
		Bathonian													165.3
		Bajocian													168.2
		Aalenian													170.9
	Early Jurassic	Toarcian													174.7
		Toarcian				Herangi	Ururoan								176
		Pliensbachian					Ururoan								184.2
		Pliensbachian					Aratauran								188.9
		Sinemurian													192.9
		Hettangian													199.5
Triassic	Late Triassic	Rhaetian				Balfour	Otapirian								201.4
		Norian					Warepan								208.5
							Otamitan								217
							Oretian								221
		Carnian					Oretian								227
		Carnian				Gore	Kaihikuan								227.5
	Middle Triassic	Ladinian					Kaihikuan								237
		Ladinian					Etalian								238
		Anisian					Etalian								242
		Anisian					Malakovian								246
	Early Triassic	Olenekian					Malakovian								247.2
		Olenekian					Nelsonian								249
		Induan					Nelsonian								251.2
		Induan				DUrville	Makarewan								251.5
Permian	Lopingian	Changhsingian					Makarewan								251.902
		Changhsingian		Waiitian	253.2
		Wuchiapingian		Waiitian	Longtanian †		254.14
		Wuchiapingian		Puruhauan	Longtanian †		254.2
	Guadalupian	Capitanian			Aparima	Flettian	259.51
		Wordian				Flettian	264.28
		Wordian				Barettian	266
		Roadian					266.9
	Cisuralian	Kungurian					273.01
		Kungurian				Mangapirian	276
		Artinskian				Mangapirian	283.5
						Telfordian	285
							288.5
		Sakmarian					290.1
		Asselian					293.52
Carboniferous	Pennsylvanian	Gzhelian					298.9
		Kasimovian					303.7
		Moscovian					307
		Bashkirian					315.2
	Mississippian	Serpukhovian					323.2
		Visean					330.9
		Tournaisian					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	Cincinnatian					Gamachian		443.8
		Katian						Gamachian		445.2
								Richmondian		446 *
								Maysvillian		Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
								Edenian			450.4 *
			Mohawkian					Chatfieldian			451.1 *
		Sandbian						Chatfieldian			453
								Turinian			453.7 *
			Whiterockian							Canadian †	Chazyan †/Marmor	457 *
	Middle Ordovician	Darriwilian										458.4
		Dapingian										467.3
		Dapingian						Rangerian				469.1 *
	Early Ordovician	Floian	Ibexian					Blackhillsian			Jeffersonian †	Cassinian †	470
		Floian						Tulean					473.9 *
		Tremadocian						Tulean					477.7
								Stairsian					480.3 *
								Skullrockian				Demingian †	482 *
Cambrian	Furongian	Stage 10						Skullrockian					485.4
		Stage 10											487.5
		Jiangshanian											489.5
		Paibian											494
	Miaolingian	Guzhangian											Series 3 †	497
		Drumian												500.5
		Wuliuan		Stage 5 †										504.5
															509