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
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. 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 126710 collections

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International Chronostratigraphic Timescale			Cenozoic Subepochs	Ten Million Year Bins	Paleogene Mammal Ages of Asia
Paleogene	Oligocene	Chattian	Late Oligocene	Cenozoic 4	Tabenbulakian	Hsandagolian	23.03
	Oligocene	Rupelian	Early Oligocene	Cenozoic 4	Kekeamuan	Hsandagolian	27.82
	Eocene	Priabonian	Late Eocene	Cenozoic 3	Houldjinian/Ergilian/Ulangochuian		33.9
		Bartonian	Middle Eocene	Cenozoic 3	Sharamurunian/Irdinmanhan/Arshantan		37.71
		Lutetian	Middle Eocene	Cenozoic 2			41.2
		Ypresian	Early Eocene	Cenozoic 2		Bumbanian	47.8
	Paleocene	Thanetian	Late Paleocene	Cenozoic 1	Gashatan		56
		Selandian	Middle Paleocene				59.2
		Danian	Early Paleocene				61.6
							66