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. 2024. The ICS International Chronostratigraphic Chart v2024/12. International Commission on Stratigraphy view

There are intervals in 11 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Lutetian age, Bartonian age, Priabonian age, Ypresian age
• Cenozoic Subepochs: Middle Eocene subepoch, Late Eocene subepoch, Early Eocene subepoch
• Mammal Paleogene Zones: MP 17B zone, MP 16 zone, MP 19 zone, MP 20 zone, MP 18 zone, MP 15 zone, MP 7 zone, MP 13 zone, MP 14 zone, MP 12 zone, MP 8 + 9 zone, MP 11 zone, MP 17A zone, MP 10 zone
• Paleogene Mammal Ages of Asia: Ergilian age, Ulangochuian age, Irdinmanhan age, Sharamurunian age, Arshantan age, Houldjinian age, Bumbanian age
• North American Land Mammal Ages: Wasatchian age, Chadronian age, Duchesnean age, Uintan age, Bridgerian age
• North American Mammal Subages/Zones: Lysitean subage, Lostcabinian subage, Blacksforkian subage, Early Uintan subage, Middle Chadronian subage, Early Chadronian subage, Graybullian subage, Late Chadronian subage, Sandcouleean subage, Twinbuttean subage, Gardnerbuttian subage, Late Uintan subage
• South American Land Mammal Ages: Divisaderan age, Casamayoran age, Mustersan age, Tinguirirican age
• Calcareous Nannoplankton Zones: NP11 zone, NP20 zone, NP21 zone, NP13 zone, NP15 zone, NP16 zone, NP10 zone, NP19-20 zone, NP14 zone, NP19 zone, NP12 zone, NP18 zone, NP17 zone
• Planktic Foraminiferal Zones: O. beckmanni TRZ zone, G. semiinvoluta HOZ zone, G. index HOZ zone, G. kugleri/M. aragonensis CRZ zone, M. crassatus HOZ zone, M. velascoensis PRZ zone, M. lehneri PRZ zone, H. alabamensis HOZ zone, A. topilensis PRZ zone, M. marginodentata PRZ zone, G. pseudomenardii TRZ zone, M. aragonensis/M. subbotinae CRZ zone, P. wilcoxensis/M. velascoensis CRZ zone, M. formosa LOZ zone, A. pentacamerata PRZ zone, A. cuneicamerata LOZ zone, A. sibaiyaensis LOZ zone, G. nuttalli LOZ zone
• Geomagnetic Polarity Chrons: C21 chron, C17 chron, C20 chron, C13 chron, C19 chron, C22 chron, C16 chron, C23 chron, C24 chron, C15 chron, C18 chron
• Cretaceous-Cenozoic of New Zealand: Landon epoch, Whaingaroan age, Waipawan age, Bortonian age, Heretaungan age, Arnold epoch, Porangan age, Dannevirke epoch, Mangaorapan age, Runangan age, Kaiatan age

This interval is used in the definition of 1145 collections

A total of 16430 collections with 159017 occurrences lie within this time span