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. 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
- F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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 126762 collections
| International Chronostratigraphic Timescale | Mammal Paleogene Zones | Carboniferous of North America | Permian of the Salt Range | ||||
|---|---|---|---|---|---|---|---|
| Paleogene | Oligocene | Chattian | MP 30/MP 29/MP 28/MP 27/MP 26 | MP 25 | 23.03 | ||
| Rupelian | MP 24/MP 23/MP 22/MP 21 | 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 | ||||||
| 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 | 168.2 | ||||||
| Aalenian | 170.9 | ||||||
| Early Jurassic | Toarcian | 174.7 | |||||
| Pliensbachian | 184.2 | ||||||
| Sinemurian | 192.9 | ||||||
| Hettangian | 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 | ||||||
| Kathwai | 251.5 * | ||||||
| Permian | Lopingian | Changhsingian | 251.902 | ||||
| 252.4 * | |||||||
| Chhidru | 252.9 * | ||||||
| Wuchiapingian | 254.14 | ||||||
| Kalabagh | 255 * | ||||||
| Wargal | 256 * | ||||||
| Guadalupian | Capitanian | 259.51 | |||||
| Wordian | 264.28 | ||||||
| 265.3 * | |||||||
| Amb | 266.1 * | ||||||
| Roadian | 266.9 | ||||||
| 270.7 * | |||||||
| Cisuralian | Kungurian | 273.01 | |||||
| Artinskian | 283.5 | ||||||
| Sakmarian | 290.1 | ||||||
| Asselian | Bursumian † | 293.52 | |||||
| Carboniferous | Pennsylvanian | Gzhelian | Virgilian | 298.9 | |||
| Kasimovian | Missourian | 303.7 | |||||
| Desmoinesian | 305.9 * | ||||||
| Moscovian | 307 | ||||||
| Atokan | 312.7 * | ||||||
| Bashkirian | 315.2 | ||||||
| Morrowan | 318.4 * | ||||||
| Mississippian | Serpukhovian | Chesterian | 323.2 | ||||
| Visean | 330.9 | ||||||
| Meramecian | 335.8 * | ||||||
| Osagean | 343.1 * | ||||||
| Tournaisian | 346.7 | ||||||
| Kinderhookian | 351.9 * | ||||||
| 358.9 | |||||||