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
  • F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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
  • 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 BinsNeogene Mammal Ages of ChinaObsolete Names for ICS UnitsPaleogene Mammal Ages of Asia
QuaternaryHoloceneMeghalayanCenozoic 60
Northgrippian0.0042
Greenlandian0.0082
PleistoceneLate PleistoceneNihewanian0.0117
Chibanian0.129
Calabrian0.774
Gelasian1.8
NeogenePliocenePiacenzianYusheanTertiary †2.58
Zanclean3.6
Baodean4.9
MioceneMessinian5.333
Tortonian7.246
Tunggurian11.1
SerravallianCenozoic 511.63
LanghianShanwangian13.82
Burdigalian15.98
Xiejiaan16.9
Aquitanian20.44
PaleogeneOligoceneChattianCenozoic 4TabenbulakianHsandagolian23.03
RupelianKekeamuan27.82
EocenePriabonianCenozoic 3Houldjinian/Ergilian/Ulangochuian33.9
BartonianSharamurunian/Irdinmanhan/Arshantan37.71
LutetianCenozoic 241.2
YpresianBumbanian47.8
PaleoceneThanetianCenozoic 1Gashatan56
Selandian59.2
Danian61.6
66