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
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
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
F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
D. H. Erwin and S. A. Bowring. 2004. Cambrian time scale. view
B. D. Webby. 1998. Steps toward a global standard for Ordovician stratigraphy. Newsletters in Stratigraphy 36:1-33 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			Silurian Ages of Europe	Ordovician of North America					European Faunal Units	Cenozoic Subepochs	Cambrian of Siberia		Ordovician of the Baltic
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 †									Villanyian	Late Pliocene						2.58
		Piacenzian										Ruscinian	Late Pliocene						3.1 *
		Zanclean										Ruscinian	Early Pliocene						3.6
	Miocene	Messinian										Turolian	Late Miocene						5.333
		Tortonian										Turolian							7.246
		Tortonian										Vallesian							8.7
		Serravallian										Astaracian	Middle Miocene						11.63
		Langhian										Astaracian	Middle Miocene						13.82
		Burdigalian										Orleanian	Early Miocene						15.98
		Burdigalian										Agenian							20
		Aquitanian										Agenian							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																	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
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			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	Gleedonian			Rootsikula	427.4
			Gleedonian			Jaagarahu	429.2 *
			Whitwellian				429.7 *
		Sheinwoodian					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				Cincinnatian	Gamachian	Harju	Porkuni	443.8
		Katian					Gamachian		Pirgu	445.2
							Richmondian		Pirgu	446 *
							Richmondian		Vormsi	449.6 *
							Maysvillian		Vormsi	Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian	449.8 *
							Maysvillian		Nabala		Johvi †	450 *
							Edenian		Nabala			450.4 *
							Edenian	Viru	Rakvere			450.6 *
						Mohawkian	Chatfieldian		Rakvere			451.1 *
									Oandu			452 *
		Sandbian							Keila		Idavere †	453
							Turinian		Keila			453.7 *
									Haljala			453.9
									Kukruse			456.4 *
						Whiterockian			Kukruse	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 *
							Rangerian	Billingen					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	Varangu					Demingian †	482 *
								Pakerort						482.2 *
														Mansian †	483.55 *
Cambrian	Furongian	Stage 10											Batyrbaian	Tavgian †	Ketyan †/Yurakian	485.4
																486.3 *
																486.5
																487.5
		Jiangshanian														489.5
													Aksaian			490.7 *
													Sakian			492.2 *
		Paibian														494
		Paibian													Ensyan †/Maduan/Nganasanian	494.7 *
	Miaolingian	Guzhangian											Series 3 †	Ayusokkanian			497
		Guzhangian												Mayan/Menevian			499.5
		Drumian												Mayan/Menevian			500.5
		Wuliuan												Stage 5 †			Amgan/Solvan	504.5
	Series 2	Stage 4												509			Amgan/Solvan
														Toyonian	Lenian †		510 *
														Botomian			512.5 *
		Stage 3												Botomian			514
		Stage 3												Atdabanian			515.6 *
	Terreneuvian	Stage 2												Tommotian			521
		Stage 2												Nemakit-Daldynian			525.5
		Fortunian												Nemakit-Daldynian	Manykaian †		529
																			538.8