56 - 33.9 Ma

The definition of this interval in the timescale International Chronostratigraphic Timescale is taken from the following source:

• K. M. Cohen, S.C. Finney, P.L. Gibbard and J.-X. Fan. 2023. The ICS International Chronostratigraphic Chart v2023/09. view

There are intervals in 8 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Lutetian age, Bartonian age, Priabonian age, Ypresian age
• Cenozoic Subepochs: Early Eocene subepoch, Late Eocene subepoch, Middle Eocene subepoch
• Mammal Paleogene Zones: MP 20 zone, MP 15 zone, MP 12 zone, MP 11 zone, MP 13 zone, MP 19 zone, MP 14 zone, MP 18 zone, MP 7 zone, MP 16 zone, MP 10 zone, MP 8 + 9 zone, MP 17A zone, MP 17B zone
• Paleogene Mammal Ages of Asia: Arshantan age, Bumbanian age, Sharamurunian age, Irdinmanhan age, Ergilian age, Houldjinian age, Ulangochuian age
• North American Land Mammal Ages: Clarkforkian age, Uintan age, Wasatchian age, Chadronian age, Duchesnean age, Bridgerian age
• North American Mammal Subages/Zones: Lostcabinian subage, Cf3 zone, Early Uintan subage, Sandcouleean subage, Late Chadronian subage, Twinbuttean subage, Cf2 zone, Blacksforkian subage, Late Uintan subage, Middle Chadronian subage, Gardnerbuttian subage, Cf1 zone, Graybullian subage, Lysitean subage, Early Chadronian subage
• South American Land Mammal Ages: Casamayoran age, Divisaderan age, Mustersan age, Tinguirirican age
• Cretaceous-Cenozoic of New Zealand: Bortonian age, Dannevirke epoch, Waipawan age, Runangan age, Kaiatan age, Arnold epoch, Porangan age, Landon epoch, Whaingaroan age, Heretaungan age, Mangaorapan age

This interval is used in the definition of 626 collections

A total of 13609 collections with 127719 occurrences lie within this time span