Hemingfordian age
18.5 - 16.3 Ma
The definition of this interval in the timescale North American Land Mammal Ages is taken from the following source:
- 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
There are intervals in 8 timescales which overlap this one. show
This interval is used in the definition of 286 collections
A total of 642 collections with 6546 occurrences lie within this time span
International Chronostratigraphic Timescale | North American Land Mammal Ages | Cenozoic Subepochs | |||
---|---|---|---|---|---|
1.4 | |||||
Neogene | Pliocene | Piacenzian | Blancan | Late Pliocene | 2.58 |
Zanclean | Early Pliocene | 3.6 | |||
Hemphillian | 4.7 | ||||
Miocene | Messinian | Late Miocene | 5.333 | ||
Tortonian | 7.246 | ||||
Clarendonian | 9.4 | ||||
Serravallian | Middle Miocene | 11.63 | |||
Barstovian | 12.5 | ||||
Langhian | 13.82 | ||||
Burdigalian | Early Miocene | 15.98 | |||
Hemingfordian | 16.3 | ||||
Arikareean | 18.5 | ||||
Aquitanian | 20.44 | ||||
23.03 | |||||
29.5 |