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. A. Lillegraven and M. C. McKenna. 1986. Fossil mammals from the "Mesaverde" Formation (Late Cretaceous, Judithian) of the Bighorn and Wind River basins, Wyoming, with definitions of Late Cretaceous North American Land-Mammal "Ages". American Museum Novitates 2840:1-68 view
There are 59 timescales which overlap this one. show
This timescale is used in the definition of 126762 collections
| International Chronostratigraphic Timescale | Cretaceous North American Land-Mammal Ages | |||
|---|---|---|---|---|
| Cretaceous | Late Cretaceous | Maastrichtian | Lancian/Edmontonian | 66 |
| Campanian | Judithian/Aquilan | 72.1 | ||
| 83.6 | ||||