PBDB Timescale

Ordovician of Ibero-Bohemia

The interval definitions in this timescale are derived from the following sources:

F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view
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
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 9 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 532 collections

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International Chronostratigraphic Timescale			Ordovician of Ibero-Bohemia				Obsolete Names for ICS Units			Ordovician of North America
Neogene	Pliocene	Piacenzian					Tertiary †									2.58
	Pliocene	Zanclean														3.6
	Miocene	Messinian														5.333
		Tortonian														7.246
		Serravallian														11.63
		Langhian														13.82
		Burdigalian														15.98
		Aquitanian														20.44
Paleogene	Oligocene	Chattian														23.03
	Oligocene	Rupelian														27.82
	Eocene	Priabonian														33.9
		Bartonian														37.71
		Lutetian														41.2
		Ypresian														47.8
	Paleocene	Thanetian														56
		Selandian														59.2
		Danian														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														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	Kosovian	Cincinnatian	Gamachian	443.8
		Katian	Kralodvorian		Gamachian	Bohdalec †			445.2
			Kralodvorian		Richmondian				446 *
			Berounian		Richmondian		449.7 *
					Maysvillian		Rocklandian †/Shermanian/Ashbyan/Kirkfieldian/Blackriveran/Wildernessian/Trentonian/Franklinian		449.8 *
					Edenian				450.4 *
				Mohawkian	Chatfieldian				451.1 *
		Sandbian			Chatfieldian				453
					Turinian				453.7 *
					Turinian				Zahorany †/Vinice	Letna †	456.2 *
				Whiterockian			Canadian †		Zahorany †/Vinice		Chazyan †/Marmor	457 *
						Liben †						458 *
	Middle Ordovician	Darriwilian										458.4
			Dobrotivian									458.5 *
			Oretanian									459.7 *
						Sarka †						461.7 *
		Dapingian				Klabava †						467.3
			Arenigian									468
					Rangerian							469.1 *
	Early Ordovician	Floian		Ibexian	Blackhillsian						Jeffersonian †	Cassinian †	470
		Floian			Tulean								473.9 *
		Tremadocian	Tremadocian		Tulean								Ungurian	477.7
					Stairsian									480.3 *
					Skullrockian							Demingian †		482 *
Cambrian	Furongian	Stage 10			Skullrockian								Batyrbaian	485.4
		Stage 10												487.5
		Jiangshanian												489.5
													Aksaian	490.7 *
													Sakian	492.2 *
		Paibian											Sakian	494
	Miaolingian	Guzhangian											Series 3 †	Ayusokkanian	497
		Guzhangian													499.5
		Drumian												Zhanaarykian	500.5
		Drumian												Tuesaian	503
		Wuliuan						Stage 5 †						Tuesaian	504.5
		Wuliuan						Stage 5 †							505.3
	Series 2	Stage 4													509
														Toyonian	510 *
														Botomian	512.5 *
		Stage 3												Botomian	514
		Stage 3												Atdabanian	515.6 *
	Terreneuvian	Stage 2												Tommotian	521
																525.5