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
  • M. Freudenthal. 2006. Mammal Paleogene zones. personal communication view
  • F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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
  • 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
  • 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

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.

This timescale is used in the definition of 127083 collections

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International Chronostratigraphic TimescaleMammal Paleogene ZonesTen Million Year BinsEuropean Faunal UnitsCenozoic SubepochsCretaceous-Cenozoic of New Zealand
QuaternaryHoloceneMeghalayanCenozoic 6WanganuiHaweran0
Northgrippian0.0042
Greenlandian0.0082
PleistoceneLate PleistoceneLate Pleistocene0.0117
ChibanianMiddle Pleistocene0.129
Castlecliffian0.34
CalabrianEarly Pleistocene0.774
Nukumaruan1.63
Gelasian1.8
Mangapanian2.4
NeogenePliocenePiacenzianVillanyianLate Pliocene2.58
Waipipian3
Ruscinian3.1 *
ZancleanEarly Pliocene3.6
Opoitian3.7
MioceneMessinianTurolianLate MioceneTaranakiKapitean5.333
Tongaporutuan7.2
Tortonian7.246
Vallesian8.7
SouthlandWaiauan11.04
SerravallianCenozoic 5AstaracianMiddle Miocene11.63
Lillburnian13.05
Langhian13.82
Clifdenian15.1
PareoraAltonian15.9
BurdigalianOrleanianEarly Miocene15.98
Otaian18.7
Agenian20
Aquitanian20.44
LandonWaitakian21.7
PaleogeneOligoceneChattianMP 30/MP 29/MP 28/MP 27/MP 26MP 25Cenozoic 4Late Oligocene23.03
Duntroonian25.2
Whaingaroan27.3
RupelianMP 24/MP 23/MP 22/MP 21Early Oligocene27.82
EocenePriabonianMP 20/MP 19/MP 18/MP 17B/MP 17ACenozoic 3Late Eocene33.9
ArnoldRunangan34.6
Kaiatan36.7
BartonianMP 16Middle Eocene37.71
Bortonian39.1
LutetianMP 15/MP 14/MP 13/MP 12/MP 11Cenozoic 241.2
DannevirkePorangan42.6
Heretaungan45.7
YpresianMP 10/MP 8 + 9/MP 7Early Eocene47.8
Mangaorapan48.9
Waipawan52
PaleoceneThanetianMP 6MP 1 - 5Cenozoic 1Late PaleoceneTeurian56
SelandianMiddle Paleocene59.2
DanianEarly Paleocene61.6
66