North American Mammal Subages/Zones
The interval definitions in this timescale are derived from the following sources:
- M. O. Woodburne. 1987. A prospectus of the North American Mammal Ages. In: Woodburne, M. O. (ed.), Cenozoic Mammals of North America. University of California Press, Berkelery, CA 285-290 view
- J. Alroy. 2000. New methods for quantifying macroevolutionary patterns and processes. Paleobiology 26(4):707-733 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
- K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view
- Z.-X. Qiu and Z.-D. Qiu. 1995. Chronological sequence and subdivision of Chinese Neogene mammalian faunas. Palaeogeography, Palaeoclimatology, Palaeoecology 116(1-2):41-70 view
- M. Harzhauser and W. E. Piller. 2004. Integrated stratigraphy of the Sarmatian (Upper Middle Miocene) in the western Central Paratethys. Stratigraphy 1(1):65-86 view
There are 13 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 1032 collections
International Chronostratigraphic Timescale | North American Mammal Subages/Zones | Ten Million Year Bins | Obsolete Names for ICS Units | Neogene Mammal Ages of China | Central Paratethys Stages | |||||
---|---|---|---|---|---|---|---|---|---|---|
Quaternary | Holocene | Meghalayan | Cenozoic 6 | 0 | ||||||
Northgrippian | 0.0042 | |||||||||
Greenlandian | 0.0082 | |||||||||
Pleistocene | Late Pleistocene | Sheridanian | Nihewanian | 0.0117 | ||||||
Chibanian | 0.129 | |||||||||
Cudahyan/Sappan | 0.21 | |||||||||
Calabrian | 0.774 | |||||||||
Senecan/Rexroadian | 1.4 | |||||||||
Gelasian | 1.8 | |||||||||
Neogene | Pliocene | Piacenzian | Tertiary † | Yushean | 2.58 | |||||
Zanclean | 3.6 | |||||||||
Late Hemphillian/late Early Hemphillian/early Early Hemphillian | 4.7 | |||||||||
Baodean | 4.9 | |||||||||
Miocene | Messinian | 5.333 | ||||||||
Tortonian | Pannonian | 7.246 | ||||||||
Late Clarendonian/Early Clarendonian | 9.4 | |||||||||
Tunggurian | 11.1 | |||||||||
Serravallian | Cenozoic 5 | Sarmatian | 11.63 | |||||||
late Late Barstovian/early Late Barstovian/Early Barstovian | 12.5 | |||||||||
Badenian | 12.8 * | |||||||||
Langhian | Shanwangian | 13.82 | ||||||||
Burdigalian | 15.98 | |||||||||
Late Hemingfordian/Early Hemingfordian | 16.3 | |||||||||
Xiejiaan | 16.9 | |||||||||
late Late Arikareean/early Late Arikareean/late Early Arikareean/early Early Arikareean | Harrisonian | 18.5 | ||||||||
Aquitanian | 20.44 | |||||||||
Paleogene | Oligocene | Chattian | Cenozoic 4 | 23.03 | ||||||
Monroecreekian | 23.1 * | |||||||||
Geringian | 24.7 * | |||||||||
Rupelian | 27.82 | |||||||||
29.5 | ||||||||||
Eocene | Priabonian | Late Chadronian/Middle Chadronian/Early Chadronian | Cenozoic 3 | 33.9 | ||||||
37 | ||||||||||
Bartonian | 37.71 | |||||||||
Late Uintan/Early Uintan | 39.7 | |||||||||
Lutetian | Cenozoic 2 | 41.2 | ||||||||
Twinbuttean/Blacksforkian/Gardnerbuttian | 46.2 | |||||||||
Ypresian | 47.8 | |||||||||
Lostcabinian/Lysitean/Graybullian/Sandcouleean | 50.5 | |||||||||
Cf3/Cf2/Cf1 | 54.9 | |||||||||
Paleocene | Thanetian | Cenozoic 1 | 56 | |||||||
Ti6/Ti5/Ti4/Ti3/Ti2/Ti1 | 56.2 | |||||||||
Selandian | 59.2 | |||||||||
To3/To2/To1 | 60.9 | |||||||||
Danian | 61.6 | |||||||||
Pu3/Pu2/Pu1 | 63.8 | |||||||||
66 |