PBDB Timescale

International Chronostratigraphic Timescale

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

K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. 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, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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
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
Z.-X. Qiu and Z.-D. Qiu. 1995. Chronological sequence and subdivision of Chinese Neogene mammalian faunas. Palaeogeography, Palaeoclimatology, Palaeoecology 116(1-2):41-70 view

There are 59 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 127083 collections

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International Chronostratigraphic Timescale			Paleogene Mammal Ages of Asia		Permian of Western Europe	Cretaceous-Cenozoic of New Zealand		Devonian of France	Silurian of the Baltic	Obsolete Names for ICS Units		Neogene Mammal Ages of China
Quaternary	Holocene	Meghalayan				Wanganui	Haweran						0
		Northgrippian											0.0042
		Greenlandian											0.0082
	Pleistocene	Late Pleistocene										Nihewanian	0.0117
		Chibanian											0.129
		Chibanian					Castlecliffian						0.34
		Calabrian					Castlecliffian						0.774
		Calabrian					Nukumaruan						1.63
		Gelasian					Nukumaruan						1.8
		Gelasian					Mangapanian						2.4
Neogene	Pliocene	Piacenzian					Mangapanian			Tertiary †		Yushean	2.58
		Piacenzian					Waipipian						3
		Zanclean					Waipipian						3.6
							Opoitian						3.7
							Opoitian					Baodean	4.9
	Miocene	Messinian				Taranaki	Kapitean						5.333
		Messinian					Tongaporutuan						7.2
		Tortonian					Tongaporutuan						7.246
						Southland	Waiauan						11.04
												Tunggurian	11.1
		Serravallian											11.63
		Serravallian					Lillburnian						13.05
		Langhian					Lillburnian					Shanwangian	13.82
							Clifdenian						15.1
						Pareora	Altonian						15.9
		Burdigalian											15.98
												Xiejiaan	16.9
							Otaian						18.7
		Aquitanian					Otaian						20.44
		Aquitanian				Landon	Waitakian						21.7
Paleogene	Oligocene	Chattian	Tabenbulakian	Hsandagolian			Waitakian						23.03
							Duntroonian						25.2
							Whaingaroan						27.3
		Rupelian	Kekeamuan										27.82
	Eocene	Priabonian	Houldjinian/Ergilian/Ulangochuian										33.9
						Arnold	Runangan						34.6
							Kaiatan						36.7
		Bartonian	Sharamurunian/Irdinmanhan/Arshantan				Kaiatan						37.71
		Bartonian					Bortonian						39.1
		Lutetian					Bortonian						41.2
						Dannevirke	Porangan						42.6
							Heretaungan						45.7
		Ypresian		Bumbanian			Heretaungan						47.8
							Mangaorapan						48.9
							Waipawan						52
	Paleocene	Thanetian	Gashatan				Teurian						56
		Selandian											59.2
		Danian											61.6
Cretaceous	Late Cretaceous	Maastrichtian				Mata	Haumurian						66
		Campanian					Haumurian						72.1
		Santonian					Piripauan						83.6
		Santonian				Raukumara	Teratan						86.1
		Coniacian											86.3
		Turonian											89.8
							Mangaotanean						90.5
							Arowhanan						93.7
		Cenomanian					Arowhanan						93.9
						Clarence	Ngaterian						95.2
							Motuan						99.5
	Early Cretaceous	Albian					Motuan						100.5
							Urutawan						103.3
						Taitai	Korangan						108.4
		Aptian					Korangan						113
		Aptian											117.5
		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				Zechstein		Longtanian †	254.14
	Guadalupian	Capitanian				Rotliegendes			259.51
		Wordian							264.28
		Roadian							266.9
	Cisuralian	Kungurian							273.01
		Artinskian				Autunian			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							Famennian		358.9
	Late Devonian	Frasnian							Frasnian		372.2
	Middle Devonian	Givetian							Givetian		382.7
	Middle Devonian	Eifelian							Couvinien		387.7
	Early Devonian	Emsian									393.3
		Pragian									407.6
		Pragian							Coblencien		408.2 *
		Lochkovian		Gedinnine					410.8
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							443.8
		Katian							445.2
		Sandbian					453
	Middle Ordovician	Darriwilian					458.4
	Middle Ordovician	Dapingian					467.3
	Early Ordovician	Floian					470
	Early Ordovician	Tremadocian					477.7
Cambrian	Furongian	Stage 10			485.4
		Jiangshanian			489.5
		Paibian			494
	Miaolingian	Guzhangian			Series 3 †		497
		Drumian					500.5
		Wuliuan					Stage 5 †	504.5
													509