PBDB Interval

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, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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. 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.

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

This timescale is used in the definition of 126701 collections

Show more time

Show linear time

International Chronostratigraphic Timescale			Ten Million Year Bins	Obsolete Names for ICS Units	Cretaceous-Cenozoic of New Zealand		Cenozoic Subepochs
								2.58
								21.7
Paleogene	Oligocene	Chattian	Cenozoic 4	Tertiary †	Landon	Waitakian	Late Oligocene	23.03
						Duntroonian		25.2
						Whaingaroan		27.3
		Rupelian					Early Oligocene	27.82
	Eocene	Priabonian	Cenozoic 3				Late Eocene	33.9
					Arnold	Runangan		34.6
						Kaiatan		36.7
		Bartonian				Kaiatan	Middle Eocene	37.71
		Bartonian				Bortonian		39.1
		Lutetian	Cenozoic 2			Bortonian		41.2
					Dannevirke	Porangan		42.6
						Heretaungan		45.7
		Ypresian				Heretaungan	Early Eocene	47.8
						Mangaorapan		48.9
						Waipawan		52
	Paleocene	Thanetian	Cenozoic 1			Teurian	Late Paleocene	56
		Selandian					Middle Paleocene	59.2
		Danian					Early Paleocene	61.6
								66