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
  • 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
  • F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 view
  • F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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
  • 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 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 126458 collections

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International Chronostratigraphic TimescaleMammal Paleogene ZonesCretaceous-Cenozoic of New ZealandCenozoic SubepochsPaleogene Mammal Ages of Asia
21.7
PaleogeneOligoceneChattianMP 30/MP 29/MP 28/MP 27/MP 26MP 25LandonWaitakianLate OligoceneTabenbulakianHsandagolian23.03
Duntroonian25.2
Whaingaroan27.3
RupelianMP 24/MP 23/MP 22/MP 21Early OligoceneKekeamuan27.82
EocenePriabonianMP 20/MP 19/MP 18/MP 17B/MP 17ALate EoceneHouldjinian/Ergilian/Ulangochuian33.9
ArnoldRunangan34.6
Kaiatan36.7
BartonianMP 16Middle EoceneSharamurunian/Irdinmanhan/Arshantan37.71
Bortonian39.1
LutetianMP 15/MP 14/MP 13/MP 12/MP 1141.2
DannevirkePorangan42.6
Heretaungan45.7
YpresianMP 10/MP 8 + 9/MP 7Early EoceneBumbanian47.8
Mangaorapan48.9
Waipawan52
PaleoceneThanetianMP 6MP 1 - 5TeurianLate PaleoceneGashatan56
SelandianMiddle Paleocene59.2
DanianEarly Paleocene61.6
66