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
J. Meng and M. C. McKenna. 1998. Faunal turnovers of Paleogene mammals from the Mongolian Plateau. Nature 394:364-367 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. Palfy, P. L. Smith, and J. K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences 37(6):923-944 view
M. Harzhauser and W. E. Piller. 2004. Integrated stratigraphy of the Sarmatian (Upper Middle Miocene) in the western Central Paratethys. Stratigraphy 1(1):65-86 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 126699 collections

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International Chronostratigraphic Timescale			Paleogene Mammal Ages of Asia		Obsolete Names for ICS Units	Cenozoic Subepochs
							2.58
Paleogene	Oligocene	Chattian	Tabenbulakian	Hsandagolian	Tertiary †	Late Oligocene	23.03
	Oligocene	Rupelian	Kekeamuan	Hsandagolian		Early Oligocene	27.82
	Eocene	Priabonian	Houldjinian/Ergilian/Ulangochuian			Late Eocene	33.9
		Bartonian	Sharamurunian/Irdinmanhan/Arshantan			Middle Eocene	37.71
		Lutetian				Middle Eocene	41.2
		Ypresian		Bumbanian		Early Eocene	47.8
	Paleocene	Thanetian	Gashatan			Late Paleocene	56
		Selandian				Middle Paleocene	59.2
		Danian				Early Paleocene	61.6
							66