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
- 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, 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 126755 collections
| International Chronostratigraphic Timescale | Devonian of Czechoslovakia | Carboniferous of Western Europe | |||||
|---|---|---|---|---|---|---|---|
| Quaternary | Holocene | Meghalayan | 0 | ||||
| Northgrippian | 0.0042 | ||||||
| Greenlandian | 0.0082 | ||||||
| Pleistocene | Late Pleistocene | 0.0117 | |||||
| Chibanian | 0.129 | ||||||
| Calabrian | 0.774 | ||||||
| Gelasian | 1.8 | ||||||
| Neogene | Pliocene | Piacenzian | 2.58 | ||||
| Zanclean | 3.6 | ||||||
| Miocene | Messinian | 5.333 | |||||
| Tortonian | 7.246 | ||||||
| Serravallian | 11.63 | ||||||
| Langhian | 13.82 | ||||||
| Burdigalian | 15.98 | ||||||
| Aquitanian | 20.44 | ||||||
| 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 | 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 | ||||||
| Permian | Lopingian | Changhsingian | 251.902 | ||||
| Wuchiapingian | 254.14 | ||||||
| Guadalupian | Capitanian | 259.51 | |||||
| Wordian | 264.28 | ||||||
| Roadian | 266.9 | ||||||
| Cisuralian | Kungurian | 273.01 | |||||
| Artinskian | 283.5 | ||||||
| Sakmarian | 290.1 | ||||||
| Asselian | 293.52 | ||||||
| Kuzel | 297.7 | ||||||
| Carboniferous | Pennsylvanian | Gzhelian | 298.9 | ||||
| Stephanian | Stephanian C | 300.3 * | |||||
| Stephanian B | 300.9 * | ||||||
| Stephanian A | 301.4 * | ||||||
| Kasimovian | 303.7 | ||||||
| Cantabrian | 305 * | ||||||
| Moscovian | 307 | ||||||
| Westphalian | Westphalian D | 307.4 * | |||||
| Westphalian C | 309.8 | ||||||
| Westphalian B | 314.6 | ||||||
| Bashkirian | 315.2 | ||||||
| Westphalian A | 317 * | ||||||
| Namurian | Yeadonian | 318.8 * | |||||
| Marsdenian | 320.2 * | ||||||
| Kinderscoutian | 321.5 * | ||||||
| Alportian | 322 * | ||||||
| Chokierian | 323.1 * | ||||||
| Mississippian | Serpukhovian | 323.2 | |||||
| Arnsbergian | 324 * | ||||||
| Pendleian | 327.4 * | ||||||
| Visean | Warnantian | Brigantian † | 330.9 | ||||
| Livian | Asbian † | 336.3 * | |||||
| Moliniacian | Holkerian †/Arundian/Chadian | 340.2 * | |||||
| Tournaisian | Ivorian | 346.7 | |||||
| Hastarian | 353.7 * | ||||||
| Devonian | Late Devonian | Famennian | 358.9 | ||||
| Frasnian | 372.2 | ||||||
| Middle Devonian | Givetian | Srbsko | 382.7 | ||||
| Eifelian | Chotec | 387.7 | |||||
| Early Devonian | Emsian | Daleje/Zlichovian | 393.3 | ||||
| Pragian | Pragian | 407.6 | |||||
| Lochkovian | Lochkovian | 410.8 | |||||
| 419.2 | |||||||