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, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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
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
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. F. Steininger, W. A. Berggren, D. V. Kent, R. L. Bernor, S. Sen and J. Agusti. 1996. Circum-Mediterranean Neogene (Miocene and Pliocene) marine-continental chronologic correlations of European mammal units. The Evolution of Western Eurasian Neogene Mammal Faunas (eds. R. L. Bernor, V. Fahlbusch, and H.-W. Mittmann) 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			Ordovician of the Baltic				Mesozoic Subages		Cretaceous-Cenozoic of New Zealand		European Faunal Zones
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	MN 17	1.8
		Gelasian											Mangapanian	MN 17	2.4
Neogene	Pliocene	Piacenzian	Tertiary †										Mangapanian	MN 16	2.58
													Waipipian	MN 16	3
														MN 15	3.2
		Zanclean													3.6
													Opoitian		3.7
														MN 14	4.2
														MN 13	4.9
	Miocene	Messinian										Taranaki	Kapitean		5.333
		Messinian											Tongaporutuan		7.2
		Tortonian												MN 12	7.246
														MN 11	7.75
														MN 10	8.7
														MN 9	9.7
												Southland	Waiauan	MN 9	11.04
														MN 7 + 8	11.1
		Serravallian												MN 7 + 8	11.63
														MN 6	12.8 *
													Lillburnian	MN 6	13.05
		Langhian											Lillburnian	MN 5	13.82
													Clifdenian		15.1
												Pareora	Altonian		15.9
		Burdigalian												MN 4	15.98
														MN 3	16.9
													Otaian	MN 3	18.7
														MN 2	20
		Aquitanian													20.44
												Landon	Waitakian		21.7
														MN 1	22.4
Paleogene	Oligocene	Chattian													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								Late Maastrichtian/Early Maastrichtian		Mata	Haumurian		66
		Campanian								Late Campanian/Middle Campanian/Early Campanian			Haumurian		72.1
		Santonian								Late Santonian/Middle Santonian/Early Santonian			Piripauan		83.6
		Santonian								Late Santonian/Middle Santonian/Early Santonian		Raukumara	Teratan		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		Late Cenomanian/Middle Cenomanian/Early Cenomanian	93.9								Arowhanan
					Clarence	Ngaterian	95.2
						Motuan	99.5
	Early Cretaceous	Albian		Late Albian		Motuan	100.5
				Late Albian		Urutawan	103.3
				Middle Albian		Urutawan	106.2 *
				Middle Albian	Taitai	Korangan	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				Epizigzagiceras	168.2
				Late Bajocian				Rotundum/Oblatum/Kirschneri/Crassicostatus/Widebayense	168.4
				Early Bajocian				Rotundum/Oblatum/Kirschneri/Crassicostatus/Widebayense	168.6 *
		Aalenian		Late Aalenian/Middle Aalenian/Early Aalenian				Howelli/Scissum/Westermanni	170.9
	Early Jurassic	Toarcian		Late Toarcian				Yakounensis/Hillebrandti/Crassicosta	174.7
								Planulata	179.3 *
									Arnioceras arnouldi	179.8 *
				Middle Toarcian						180.4 *
								Kanense		181.3 *
								Carlottense		182.3 *
				Early Toarcian				Carlottense		182.9 *
				Early Toarcian				Kunae		183.5 *
		Pliensbachian		Late Pliensbachian/Early Pliensbachian				Kunae		184.2
								Freboldi		185.1 *
								Whiteavesi/Imlayi		Tetraspidoceras	186.2 *
										Tetraspidoceras	189.2 *
								Plesechioceras harbledownense/Asteroceras varians/Coroniceras		Canadensis	190.3 *
		Sinemurian		Late Sinemurian/Early Sinemurian							192.9
								Pseudaetomoceras	Psiloceras		196.4 *
								Franziceras/Euphyllites			196.5 *
		Hettangian		Late Hettangian/Middle Hettangian/Early Hettangian				Franziceras/Euphyllites			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		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
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					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			Harju	Porkuni	443.8
		Katian				Pirgu	445.2
						Vormsi	449.6 *
						Nabala	Johvi †				450 *
					Viru	Rakvere					450.6 *
						Oandu					452 *
		Sandbian				Keila	Idavere †				453
						Haljala					453.9
						Kukruse					456.4 *
						Uhaku	Aluoja †				457.5 *
	Middle Ordovician	Darriwilian				Uhaku					458.4
						Lasnamagi					458.9 *
						Aseri					460.4 *
					Oeland	Kunda					462.9 *
						Kunda	Valaste †/Hunderum				464.3 *
						Volkhov				Langevoja †/Vaana/Saka	467.1 *
		Dapingian				Volkhov					467.3
		Dapingian				Billingen		469.3 *
	Early Ordovician	Floian						470
							Latorp †		470.1 *
						Hunneberg			473.7 *
		Tremadocian				Hunneberg			477.7
						Varangu			481.3 *
						Pakerort			482.2 *
Cambrian	Furongian	Stage 10				Pakerort			485.4
									486.3 *
									486.5
		Jiangshanian							489.5
		Paibian							494
	Miaolingian	Guzhangian							Series 3 †	497
		Drumian								500.5
		Wuliuan		Stage 5 †						504.5
															509