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
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
F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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
M. Kretzoi. 1942. Necroteuthis n. g. (Ceph. Dibr., Necroteuthidae N. F.) aus dem Oligozän von Budapest und das system der Dibranchiata. Földtani Közlöny 72:125-238 view
M. Freudenthal. 2006. Mammal Paleogene zones. personal communication 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 127245 collections

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International Chronostratigraphic Timescale			Obsolete Names for ICS Units	Mammal Paleogene Zones
						2.58
Paleogene	Oligocene	Chattian	Tertiary †	MP 30/MP 29/MP 28/MP 27/MP 26	MP 25	23.03
	Oligocene	Rupelian		MP 24/MP 23/MP 22/MP 21	MP 25	27.82
	Eocene	Priabonian		MP 20/MP 19/MP 18/MP 17B/MP 17A		33.9
		Bartonian		MP 16		37.71
		Lutetian		MP 15/MP 14/MP 13/MP 12/MP 11		41.2
		Ypresian		MP 10/MP 8 + 9/MP 7		47.8
	Paleocene	Thanetian		MP 6	MP 1 - 5	56
		Selandian				59.2
		Danian				61.6
						66