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. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 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
- 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 126162 collections
International Chronostratigraphic Timescale | Permian of the Salt Range | Ten Million Year Bins | Mesozoic Subages | Ammonite Chrons of Northwest Europe | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Quaternary | Holocene | Meghalayan | Cenozoic 6 | 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 | Cenozoic 5 | 11.63 | |||||||||
Langhian | 13.82 | ||||||||||
Burdigalian | 15.98 | ||||||||||
Aquitanian | 20.44 | ||||||||||
Paleogene | Oligocene | Chattian | Cenozoic 4 | 23.03 | |||||||
Rupelian | 27.82 | ||||||||||
Eocene | Priabonian | Cenozoic 3 | 33.9 | ||||||||
Bartonian | 37.71 | ||||||||||
Lutetian | Cenozoic 2 | 41.2 | |||||||||
Ypresian | 47.8 | ||||||||||
Paleocene | Thanetian | Cenozoic 1 | 56 | ||||||||
Selandian | 59.2 | ||||||||||
Danian | 61.6 | ||||||||||
Cretaceous | Late Cretaceous | Maastrichtian | Cretaceous 8 | Late Maastrichtian/Early Maastrichtian | 66 | ||||||
Campanian | Cretaceous 7 | Late Campanian/Middle Campanian/Early Campanian | 72.1 | ||||||||
Santonian | Cretaceous 6 | Late Santonian/Middle Santonian/Early Santonian | 83.6 | ||||||||
Coniacian | Late Coniacian/Middle Coniacian/Early Coniacian | 86.3 | |||||||||
Turonian | Late Turonian/Middle Turonian/Early Turonian | 89.8 | |||||||||
Cenomanian | Cretaceous 5 | Late Cenomanian/Middle Cenomanian/Early Cenomanian | 93.9 | ||||||||
Early Cretaceous | Albian | Cretaceous 4 | Late Albian | 100.5 | |||||||
Middle Albian | 106.2 * | ||||||||||
Early Albian | 109.9 * | ||||||||||
Aptian | Cretaceous 3 | Late Aptian | 113 | ||||||||
Early Aptian | 119.5 * | ||||||||||
Barremian | Cretaceous 2 | Late Barremian/Early Barremian | 121.4 | ||||||||
Hauterivian | Late Hauterivian/Early Hauterivian | 125.77 | |||||||||
Valanginian | Cretaceous 1 | Late Valanginian/Early Valanginian | 132.6 | ||||||||
Berriasian | Late Berriasian | 139.8 | |||||||||
Middle Berriasian | 140.6 * | ||||||||||
Early Berriasian | 142.7 * | ||||||||||
Jurassic | Late Jurassic | Tithonian | Jurassic 6 | Late Tithonian | Middle Tithonian | 145 | |||||
Early Tithonian | 146.3 * | ||||||||||
Kimmeridgian | Jurassic 5 | Late Kimmeridgian | 149.2 | ||||||||
Early Kimmeridgian | 152.2 * | ||||||||||
Oxfordian | Late Oxfordian | Middle Oxfordian/Early Oxfordian | 154.8 | ||||||||
157.9 * | |||||||||||
Middle Jurassic | Callovian | Late Callovian/Middle Callovian/Early Callovian | 161.5 | ||||||||
Bathonian | Jurassic 4 | Late Bathonian/Middle Bathonian/Early Bathonian | 165.3 | ||||||||
Bajocian | Late Bajocian | Parkinsoni/Garantiana/Subfurcatum/Sauzei/Laeviuscula/Discites | 168.2 | ||||||||
Humphresianum | 168.4 | ||||||||||
Early Bajocian | 168.6 * | ||||||||||
Aalenian | Jurassic 3 | Late Aalenian/Middle Aalenian/Early Aalenian | Concavum/Murchisonae/Opalinum | 170.9 | |||||||
Early Jurassic | Toarcian | Late Toarcian | Levesquei/Variabilis/Bifrons | Thouarsense | 174.7 | ||||||
180.1 | |||||||||||
Middle Toarcian | 180.4 * | ||||||||||
Serpentinum/Falciferum/Tenuicostatum | 182 | ||||||||||
Early Toarcian | 182.9 * | ||||||||||
Pliensbachian | Jurassic 2 | Late Pliensbachian/Early Pliensbachian | Spinatum/Margaritatus/Davoei/Ibex/Jamesoni | 184.2 | |||||||
Sinemurian | Jurassic 1 | Late Sinemurian/Early Sinemurian | Raricostatum/Oxynotum/Obtusum/Turneri/Semicostatum/Bucklandi | 192.9 | |||||||
Hettangian | Late Hettangian/Middle Hettangian/Early Hettangian | Angulata/Liasicus/Planorbis | 199.5 | ||||||||
Triassic | Late Triassic | Rhaetian | Triassic 4 | 201.4 | |||||||
Norian | Sevatian | 208.5 | |||||||||
Alaunian | 213.2 * | ||||||||||
Lacian | 216.7 * | ||||||||||
Carnian | Triassic 3 | Tuvalian | 227 | ||||||||
Julian | 233.4 * | ||||||||||
Middle Triassic | Ladinian | Triassic 2 | Longobardian | 237 | |||||||
Fassanian | 239.7 * | ||||||||||
Anisian | Illyrian | 242 | |||||||||
Pelsonian | 243.8 * | ||||||||||
Bithynian | 244.7 * | ||||||||||
Aegean | 245.5 * | ||||||||||
Early Triassic | Olenekian | Triassic 1 | Spathian | 247.2 | |||||||
Smithian | 248.9 * | ||||||||||
Induan | Dienerian | 251.2 | |||||||||
Griesbachian | 251.4 * | ||||||||||
Kathwai | 251.5 * | ||||||||||
251.902 * | |||||||||||
252.4 |