Bridgerian age

50.5 - 46.2 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 7 timescales which overlap this one. show

This interval is used in the definition of 710 collections

A total of 693 collections with 3750 occurrences lie within this time span

Show more time

Show linear time

International Chronostratigraphic TimescaleNorth American Land Mammal AgesCenozoic Subepochs
18.5
PaleogeneOligoceneChattianArikareeanLate Oligocene23.03
RupelianEarly Oligocene27.82
Whitneyan29.5
Orellan31.8
EocenePriabonianChadronianLate Eocene33.9
Duchesnean37
BartonianMiddle Eocene37.71
Uintan39.7
Lutetian41.2
Bridgerian46.2
YpresianEarly Eocene47.8
Wasatchian50.5
Clarkforkian54.9
PaleoceneThanetianLate Paleocene56
Tiffanian56.2
SelandianMiddle Paleocene59.2
Torrejonian60.9
DanianEarly Paleocene61.6
Puercan63.8
66