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

This interval is used in the definition of 1145 collections

A total of 16395 collections with 158864 occurrences lie within this time span