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. 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
- 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, F. P. Agterberg, J. G. Ogg, J. Hardenbol, P. Van Veen, J. Thierry, and Z. Huang. 1995. A Triassic, Jurassic, and Cretaceous time scale. SEPM Special Publication 54 view
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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
- P. L. Gibbard, M. J. Head, and M. J. C. Walker. 2010. Formal ratification of the Quaternary System/Period and the Pleistocene Series/Epoch with a base at 2.58 Ma. Journal of Quaternary Science 25(2):96-102 view
- M. Freudenthal. 2006. Mammal Paleogene zones. personal communication view
- F. M. Gradstein, J. G. Ogg, and A. G. Smith. 2004. A Geologic Time Scale 2004 1-589 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 126536 collections
| International Chronostratigraphic Timescale | Mammal Paleogene Zones | Cenozoic Subepochs | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Paleogene | Oligocene | Chattian | MP 30/MP 29/MP 28/MP 27/MP 26 | MP 25 | Late Oligocene | 23.03 | ||||||
| Rupelian | MP 24/MP 23/MP 22/MP 21 | Early Oligocene | 27.82 | |||||||||
| Eocene | Priabonian | MP 20/MP 19/MP 18/MP 17B/MP 17A | Late Eocene | 33.9 | ||||||||
| Bartonian | MP 16 | Middle Eocene | 37.71 | |||||||||
| Lutetian | MP 15/MP 14/MP 13/MP 12/MP 11 | 41.2 | ||||||||||
| Ypresian | MP 10/MP 8 + 9/MP 7 | Early Eocene | 47.8 | |||||||||
| Paleocene | Thanetian | MP 6 | MP 1 - 5 | Late Paleocene | 56 | |||||||
| Selandian | Middle Paleocene | 59.2 | ||||||||||
| Danian | Early Paleocene | 61.6 | ||||||||||
| 66 | ||||||||||||