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. 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
- A. D. Barnosky, M. Holmes, R. Kirchholtes, E. Lindsey, K.C. Maguire, A.W. Poust, M.A. Stegner, J. Sunseri, B. Swartz, J. Swift, N.A. Villavicencio and G. Wogan. 2014. Prelude to the Anthropocene: Two new North American Land Mammal Ages (NALMAs). The Anthropocene Review I(3):225-242 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
- 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
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 126699 collections
International Chronostratigraphic Timescale | Ammonite Chrons of North America | Permian-Jurassic of New Zealand | Ammonite Chrons of Northwest Europe | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Jurassic | Late Jurassic | Tithonian | Oteke | Puaroan | 145 | |||||||
Kimmeridgian | 149.2 | |||||||||||
Kawhia | Ohauan | 150 | ||||||||||
Heterian | 154.5 | |||||||||||
Oxfordian | 154.8 | |||||||||||
Middle Jurassic | Callovian | 161.5 | ||||||||||
Temaikan | 164.3 | |||||||||||
Bathonian | 165.3 | |||||||||||
Bajocian | Epizigzagiceras | Parkinsoni/Garantiana/Subfurcatum/Sauzei/Laeviuscula/Discites | 168.2 | |||||||||
Rotundum/Oblatum/Kirschneri/Crassicostatus/Widebayense | Humphresianum | 168.4 | ||||||||||
Aalenian | Howelli/Scissum/Westermanni | Concavum/Murchisonae/Opalinum | 170.9 | |||||||||
Early Jurassic | Toarcian | Yakounensis/Hillebrandti/Crassicosta | Levesquei/Variabilis/Bifrons | Thouarsense | 174.7 | |||||||
Herangi | Ururoan | 176 | ||||||||||
Planulata | 179.3 * | |||||||||||
Arnioceras arnouldi | 179.8 * | |||||||||||
180.1 | ||||||||||||
Kanense | 181.3 * | |||||||||||
Serpentinum/Falciferum/Tenuicostatum | 182 | |||||||||||
Carlottense | 182.3 * | |||||||||||
Kunae | 183.5 * | |||||||||||
Pliensbachian | Spinatum/Margaritatus/Davoei/Ibex/Jamesoni | 184.2 | ||||||||||
Freboldi | 185.1 * | |||||||||||
Whiteavesi/Imlayi | Tetraspidoceras | 186.2 * | ||||||||||
Aratauran | 188.9 | |||||||||||
189.2 * | ||||||||||||
Plesechioceras harbledownense/Asteroceras varians/Coroniceras | Canadensis | 190.3 * | ||||||||||
Sinemurian | Raricostatum/Oxynotum/Obtusum/Turneri/Semicostatum/Bucklandi | 192.9 | ||||||||||
Pseudaetomoceras | Psiloceras | 196.4 * | ||||||||||
Franziceras/Euphyllites | 196.5 * | |||||||||||
Hettangian | Angulata/Liasicus/Planorbis | 199.5 | ||||||||||
201.4 |