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
J. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 view
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
F. J. Prevosti, C. O. Romano, A. M. Forasiepi, S. Hemming, R. Bonini, A. M. Candela, E. Cerdeño, M. C. Madozzo Jaén, P. E. Ortiz, F. Pujos, L. Rasia, G. I. Schmidt, M. Taglioretti, R. D. E. MacPhee, and U. F. J. Pardiñas. 2021. New radiometric 40Ar–39Ar dates and faunistic analyses refine evolutionary dynamics of Neogene vertebrate assemblages in southern South America. Scientific Reports 2021(11):9830 view
J. J. Flynn and C. C. Swisher, III. 1995. Cenozoic South American Land Mammal Ages: correlation to global geochronology. Geochronology Time Scales and Global Stratigraphic Correlation, SEPM Special Publication 54:317-333 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
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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			Carboniferous of Western Europe		Paleogene Mammal Ages of Asia		Carboniferous Subepochs	South American Land Mammal Ages		Central Paratethys Stages	Ordovician of the Baltic
Quaternary	Pleistocene	Late Pleistocene									Lujanian							0.0117
		Chibanian									Lujanian							0.129
		Chibanian									Ensenadan							0.3 *
		Calabrian									Ensenadan							0.774
		Calabrian									Sanandresian	Uquian †						1.7 *
		Gelasian									Sanandresian							1.8
Neogene	Pliocene	Piacenzian	Tertiary †								Vorohuean							2.58
		Piacenzian									Chapadmalalan							2.9 *
		Zanclean									Chapadmalalan							3.6
											Montehermosan							3.7 *
											Huayquerian							4.9 *
	Miocene	Messinian																5.333
		Tortonian											Pannonian					7.246
											Chasicoan							7.9 *
											Mayoan							9.9 *
											Laventan							10.9 *
		Serravallian											Sarmatian					11.63
													Badenian					12.8 *
											Colloncuran		Badenian					13.7 *
		Langhian									Colloncuran							13.82
		Langhian									Friasian							15.4 *
		Burdigalian									Friasian							15.98
											Santacrucian							16.2 *
											Colhuehuapian							17.4 *
		Aquitanian									Colhuehuapian							20.44
		Aquitanian									Deseadan							20.9 *
Paleogene	Oligocene	Chattian						Tabenbulakian	Hsandagolian									23.03
		Rupelian						Kekeamuan										27.82
		Rupelian						Kekeamuan			Tinguirirican							28.9 *
	Eocene	Priabonian						Houldjinian/Ergilian/Ulangochuian			Tinguirirican							33.9
		Priabonian						Houldjinian/Ergilian/Ulangochuian			Divisaderan							35.9 *
		Bartonian						Sharamurunian/Irdinmanhan/Arshantan										37.71
		Lutetian																41.2
		Lutetian									Mustersan							41.9 *
		Ypresian							Bumbanian		Mustersan							47.8
		Ypresian							Bumbanian		Casamayoran							47.9 *
	Paleocene	Thanetian						Gashatan			Riochican							56
											Itaboraian							56.9 *
											Peligran							58.9 *
		Selandian																59.2
		Danian																61.6
		Danian									Tiupampan							62.4 *
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																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	Late Pennsylvanian	298.9
					Stephanian		Stephanian C			300.3 *
							Stephanian B			300.9 *
							Stephanian A			301.4 *
		Kasimovian					Stephanian A			303.7
		Kasimovian					Cantabrian			305 *
		Moscovian				Middle Pennsylvanian	Cantabrian			307
					Westphalian		Westphalian D			307.4 *
							Westphalian C			309.8
							Westphalian B			314.6
		Bashkirian				Early Pennsylvanian	Westphalian B			315.2
							Westphalian A			317 *
					Namurian		Yeadonian			318.8 *
							Marsdenian			320.2 *
							Kinderscoutian			321.5 *
							Alportian			322 *
							Chokierian			323.1 *
	Mississippian	Serpukhovian				Late Mississippian	Chokierian			323.2
							Arnsbergian		324 *
							Pendleian		327.4 *
		Visean			Warnantian	Brigantian †	Middle Mississippian		330.9
					Livian	Asbian †		336.3 *
					Moliniacian	Holkerian †/Arundian/Chadian		340.2 *
		Tournaisian			Ivorian		Early Mississippian	346.7
		Tournaisian	Hastarian		353.7 *		Early Mississippian
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							Ohesaare	419.2
	Pridoli							Kaugetuma	421.7 *
	Ludlow	Ludfordian						Kuressaare	423
		Ludfordian						Paadla	423.4 *
		Gorstian						Paadla	425.6
	Wenlock	Homerian						Rootsikula	427.4
		Homerian						Jaagarahu	429.2 *
		Sheinwoodian						Jaagarahu	430.5
		Sheinwoodian						Jaani	431.8 *
	Llandovery	Telychian						Jaani	433.4
		Telychian						Adavere	434 *
		Aeronian						Adavere	438.5
		Aeronian						Raikkula	439.4 *
		Rhuddanian						Raikkula	440.8
		Rhuddanian		Juuru				441.4 *
Ordovician	Late Ordovician	Hirnantian		Harju				Porkuni		Cincinnatian	Gamachian	443.8
		Katian						Pirgu			Gamachian	445.2
								Pirgu			Richmondian	446 *
								Vormsi			Richmondian	449.6 *
								Vormsi			Maysvillian	Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
								Nabala			Maysvillian		Johvi †	450 *
								Nabala			Edenian			450.4 *
				Viru				Rakvere			Edenian			450.6 *
								Rakvere		Mohawkian	Chatfieldian			451.1 *
								Oandu						452 *
		Sandbian						Keila					Idavere †	453
								Keila			Turinian			453.7 *
								Haljala						453.9
								Kukruse						456.4 *
								Kukruse		Whiterockian		Canadian †		Chazyan †/Marmor	457 *
								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														467.3
											Rangerian					469.1 *
								Billingen			Rangerian					469.3 *
	Early Ordovician	Floian								Ibexian	Blackhillsian			Jeffersonian †		Cassinian †	470
													Latorp †				470.1 *
								Hunneberg									473.7 *
											Tulean						473.9 *
		Tremadocian									Tulean						477.7
						Stairsian					480.3 *
						Stairsian		Varangu			481.3 *
			Skullrockian		Demingian †	482 *		Varangu
					Demingian †	Pakerort		482.2 *
Cambrian	Furongian	Stage 10				Pakerort							485.4
													486.3 *
													486.5
													487.5
		Jiangshanian											489.5
		Paibian											494
	Miaolingian	Guzhangian											Series 3 †	497
		Drumian												500.5
		Wuliuan												Stage 5 †		504.5
																		509