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. O. Woodburne. 1987. A prospectus of the North American Mammal Ages. In: Woodburne, M. O. (ed.), Cenozoic Mammals of North America. University of California Press, Berkelery, CA 285-290 view
- J. Alroy. 2000. New methods for quantifying macroevolutionary patterns and processes. Paleobiology 26(4):707-733 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
- 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.
Interval names marked with † are no longer in current use.
This timescale is used in the definition of 126144 collections
International Chronostratigraphic Timescale | North American Mammal Subages/Zones | Cretaceous-Cenozoic of New Zealand | Obsolete Names for ICS Units | Ten Million Year Bins | Cenozoic Subepochs | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2.58 | ||||||||||||||
18.5 | ||||||||||||||
21.7 | ||||||||||||||
Paleogene | Oligocene | Chattian | late Late Arikareean/early Late Arikareean/late Early Arikareean/early Early Arikareean | Harrisonian | Landon | Waitakian | Tertiary † | Cenozoic 4 | Late Oligocene | 23.03 | ||||
Monroecreekian | 23.1 * | |||||||||||||
Geringian | 24.7 * | |||||||||||||
Duntroonian | 25.2 | |||||||||||||
Whaingaroan | 27.3 | |||||||||||||
Rupelian | Early Oligocene | 27.82 | ||||||||||||
29.5 | ||||||||||||||
Eocene | Priabonian | Late Chadronian/Middle Chadronian/Early Chadronian | Cenozoic 3 | Late Eocene | 33.9 | |||||||||
Arnold | Runangan | 34.6 | ||||||||||||
Kaiatan | 36.7 | |||||||||||||
37 | ||||||||||||||
Bartonian | Middle Eocene | 37.71 | ||||||||||||
Bortonian | 39.1 | |||||||||||||
Late Uintan/Early Uintan | 39.7 | |||||||||||||
Lutetian | Cenozoic 2 | 41.2 | ||||||||||||
Dannevirke | Porangan | 42.6 | ||||||||||||
Heretaungan | 45.7 | |||||||||||||
Twinbuttean/Blacksforkian/Gardnerbuttian | 46.2 | |||||||||||||
Ypresian | Early Eocene | 47.8 | ||||||||||||
Mangaorapan | 48.9 | |||||||||||||
Lostcabinian/Lysitean/Graybullian/Sandcouleean | 50.5 | |||||||||||||
Waipawan | 52 | |||||||||||||
Cf3/Cf2/Cf1 | 54.9 | |||||||||||||
Paleocene | Thanetian | Teurian | Cenozoic 1 | Late Paleocene | 56 | |||||||||
Ti6/Ti5/Ti4/Ti3/Ti2/Ti1 | 56.2 | |||||||||||||
Selandian | Middle Paleocene | 59.2 | ||||||||||||
To3/To2/To1 | 60.9 | |||||||||||||
Danian | Early Paleocene | 61.6 | ||||||||||||
Pu3/Pu2/Pu1 | 63.8 | |||||||||||||
66 |