North American Land Mammal Ages
The interval definitions in this timescale are derived from the following sources:
- A. D. Barnosky, M. Holmes, R. Kirchholtes, E. Lindsey, K.C. Maguire, A.W. Poust, M.A. Stegner, J. Sunseri, B. Swartz, J. Swift, N.A. Villavicencio and G. Wogan. 2014. Prelude to the Anthropocene: Two new North American Land Mammal Ages (NALMAs). The Anthropocene Review I(3):225-242 view
- F. F. Steininger, W. A. Berggren, D. V. Kent, R. L. Bernor, S. Sen and J. Agusti. 1996. Circum-Mediterranean Neogene (Miocene and Pliocene) marine-continental chronologic correlations of European mammal units. The Evolution of Western Eurasian Neogene Mammal Faunas (eds. R. L. Bernor, V. Fahlbusch, and H.-W. Mittmann) 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.
This timescale is used in the definition of 7507 collections
| International Chronostratigraphic Timescale | North American Land Mammal Ages | European Faunal Zones | |||
|---|---|---|---|---|---|
| Quaternary | Holocene | Meghalayan | Saintaugustinean | 0 | |
| Santarosean | 0.0004 | ||||
| Northgrippian | 0.0042 | ||||
| Greenlandian | 0.0082 | ||||
| Pleistocene | Late Pleistocene | 0.0117 | |||
| Rancholabrean | 0.014 | ||||
| Chibanian | 0.129 | ||||
| Irvingtonian | 0.21 | ||||
| Calabrian | 0.774 | ||||
| Blancan | 1.4 | ||||
| Gelasian | MN 17 | 1.8 | |||
| Neogene | Pliocene | Piacenzian | MN 16 | 2.58 | |
| MN 15 | 3.2 | ||||
| Zanclean | 3.6 | ||||
| MN 14 | 4.2 | ||||
| Hemphillian | 4.7 | ||||
| MN 13 | 4.9 | ||||
| Miocene | Messinian | 5.333 | |||
| Tortonian | MN 12 | 7.246 | |||
| MN 11 | 7.75 | ||||
| MN 10 | 8.7 | ||||
| Clarendonian | 9.4 | ||||
| MN 9 | 9.7 | ||||
| MN 7 + 8 | 11.1 | ||||
| Serravallian | 11.63 | ||||
| Barstovian | 12.5 | ||||
| MN 6 | 12.8 * | ||||
| Langhian | MN 5 | 13.82 | |||
| Burdigalian | MN 4 | 15.98 | |||
| Hemingfordian | 16.3 | ||||
| MN 3 | 16.9 | ||||
| Arikareean | 18.5 | ||||
| MN 2 | 20 | ||||
| Aquitanian | 20.44 | ||||
| MN 1 | 22.4 | ||||
| Paleogene | Oligocene | Chattian | 23.03 | ||
| Rupelian | 27.82 | ||||
| Whitneyan | 29.5 | ||||
| Orellan | 31.8 | ||||
| Eocene | Priabonian | Chadronian | 33.9 | ||
| Duchesnean | 37 | ||||
| Bartonian | 37.71 | ||||
| Uintan | 39.7 | ||||
| Lutetian | 41.2 | ||||
| Bridgerian | 46.2 | ||||
| Ypresian | 47.8 | ||||
| Wasatchian | 50.5 | ||||
| Clarkforkian | 54.9 | ||||
| Paleocene | Thanetian | 56 | |||
| Tiffanian | 56.2 | ||||
| Selandian | 59.2 | ||||
| Torrejonian | 60.9 | ||||
| Danian | 61.6 | ||||
| Puercan | 63.8 | ||||
| 66 | |||||