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. 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
  • F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 view

There are 59 timescales which overlap this one. show

Interval names marked with † are no longer in current use.

This timescale is used in the definition of 126163 collections

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International Chronostratigraphic TimescaleTen Million Year BinsCretaceous-Cenozoic of New ZealandObsolete Names for ICS UnitsPaleogene Mammal Ages of Asia
QuaternaryHoloceneMeghalayanCenozoic 6WanganuiHaweran0
Northgrippian0.0042
Greenlandian0.0082
PleistoceneLate Pleistocene0.0117
Chibanian0.129
Castlecliffian0.34
Calabrian0.774
Nukumaruan1.63
Gelasian1.8
Mangapanian2.4
NeogenePliocenePiacenzianTertiary †2.58
Waipipian3
Zanclean3.6
Opoitian3.7
MioceneMessinianTaranakiKapitean5.333
Tongaporutuan7.2
Tortonian7.246
SouthlandWaiauan11.04
SerravallianCenozoic 511.63
Lillburnian13.05
Langhian13.82
Clifdenian15.1
PareoraAltonian15.9
Burdigalian15.98
Otaian18.7
Aquitanian20.44
LandonWaitakian21.7
PaleogeneOligoceneChattianCenozoic 4TabenbulakianHsandagolian23.03
Duntroonian25.2
Whaingaroan27.3
RupelianKekeamuan27.82
EocenePriabonianCenozoic 3Houldjinian/Ergilian/Ulangochuian33.9
ArnoldRunangan34.6
Kaiatan36.7
BartonianSharamurunian/Irdinmanhan/Arshantan37.71
Bortonian39.1
LutetianCenozoic 241.2
DannevirkePorangan42.6
Heretaungan45.7
YpresianBumbanian47.8
Mangaorapan48.9
Waipawan52
PaleoceneThanetianCenozoic 1TeurianGashatan56
Selandian59.2
Danian61.6
66