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. 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
- 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
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 125932 collections
| International Chronostratigraphic Timescale | European Faunal Zones | Ammonite Chrons of Northwest Europe | ||||
|---|---|---|---|---|---|---|
| Quaternary | Holocene | Meghalayan | 0 | |||
| Northgrippian | 0.0042 | |||||
| Greenlandian | 0.0082 | |||||
| Pleistocene | Late Pleistocene | 0.0117 | ||||
| Chibanian | 0.129 | |||||
| Calabrian | 0.774 | |||||
| Gelasian | MN 17 | 1.8 | ||||
| Neogene | Pliocene | Piacenzian | MN 16 | 2.58 | ||
| MN 15 | 3.2 | |||||
| Zanclean | 3.6 | |||||
| MN 14 | 4.2 | |||||
| MN 13 | 4.9 | |||||
| Miocene | Messinian | 5.333 | ||||
| Tortonian | MN 12 | 7.246 | ||||
| MN 11 | 7.75 | |||||
| MN 10 | 8.7 | |||||
| MN 9 | 9.7 | |||||
| MN 7 + 8 | 11.1 | |||||
| Serravallian | 11.63 | |||||
| MN 6 | 12.8 * | |||||
| Langhian | MN 5 | 13.82 | ||||
| Burdigalian | MN 4 | 15.98 | ||||
| MN 3 | 16.9 | |||||
| MN 2 | 20 | |||||
| Aquitanian | 20.44 | |||||
| MN 1 | 22.4 | |||||
| Paleogene | Oligocene | Chattian | 23.03 | |||
| Rupelian | 27.82 | |||||
| Eocene | Priabonian | 33.9 | ||||
| Bartonian | 37.71 | |||||
| Lutetian | 41.2 | |||||
| Ypresian | 47.8 | |||||
| Paleocene | Thanetian | 56 | ||||
| Selandian | 59.2 | |||||
| Danian | 61.6 | |||||
| Cretaceous | Late Cretaceous | Maastrichtian | 66 | |||
| Campanian | 72.1 | |||||
| Santonian | 83.6 | |||||
| Coniacian | 86.3 | |||||
| Turonian | 89.8 | |||||
| Cenomanian | 93.9 | |||||
| Early Cretaceous | Albian | 100.5 | ||||
| Aptian | 113 | |||||
| Barremian | 121.4 | |||||
| Hauterivian | 125.77 | |||||
| Valanginian | 132.6 | |||||
| Berriasian | 139.8 | |||||
| Jurassic | Late Jurassic | Tithonian | 145 | |||
| Kimmeridgian | 149.2 | |||||
| Oxfordian | 154.8 | |||||
| Middle Jurassic | Callovian | 161.5 | ||||
| Bathonian | 165.3 | |||||
| Bajocian | Parkinsoni/Garantiana/Subfurcatum/Sauzei/Laeviuscula/Discites | 168.2 | ||||
| Humphresianum | 168.4 | |||||
| Aalenian | Concavum/Murchisonae/Opalinum | 170.9 | ||||
| Early Jurassic | Toarcian | Levesquei/Variabilis/Bifrons | Thouarsense | 174.7 | ||
| 180.1 | ||||||
| Serpentinum/Falciferum/Tenuicostatum | 182 | |||||
| Pliensbachian | Spinatum/Margaritatus/Davoei/Ibex/Jamesoni | 184.2 | ||||
| Sinemurian | Raricostatum/Oxynotum/Obtusum/Turneri/Semicostatum/Bucklandi | 192.9 | ||||
| Hettangian | Angulata/Liasicus/Planorbis | 199.5 | ||||
| Triassic | Late Triassic | Rhaetian | 201.4 | |||
| Norian | 208.5 | |||||
| Carnian | 227 | |||||
| Middle Triassic | Ladinian | 237 | ||||
| Anisian | 242 | |||||
| Early Triassic | Olenekian | 247.2 | ||||
| Induan | 251.2 | |||||
| 251.902 | ||||||