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, 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
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 127262 collections

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International Chronostratigraphic Timescale			Ten Million Year Bins	Paleogene Mammal Ages of Asia
Quaternary	Holocene	Meghalayan	Cenozoic 6			0
		Northgrippian				0.0042
		Greenlandian				0.0082
	Pleistocene	Late Pleistocene				0.0117
		Chibanian				0.129
		Calabrian				0.774
		Gelasian				1.8
Neogene	Pliocene	Piacenzian				2.58
	Pliocene	Zanclean				3.6
	Miocene	Messinian				5.333
		Tortonian				7.246
		Serravallian	Cenozoic 5			11.63
		Langhian				13.82
		Burdigalian				15.98
		Aquitanian				20.44
Paleogene	Oligocene	Chattian	Cenozoic 4	Tabenbulakian	Hsandagolian	23.03
	Oligocene	Rupelian	Cenozoic 4	Kekeamuan	Hsandagolian	27.82
	Eocene	Priabonian	Cenozoic 3	Houldjinian/Ergilian/Ulangochuian		33.9
		Bartonian	Cenozoic 3	Sharamurunian/Irdinmanhan/Arshantan		37.71
		Lutetian	Cenozoic 2			41.2
		Ypresian	Cenozoic 2		Bumbanian	47.8
	Paleocene	Thanetian	Cenozoic 1	Gashatan		56
		Selandian				59.2
		Danian				61.6
						66