48.07 - 41.03 Ma

The definition of this interval in the timescale Mammal Paleogene Zones is taken from the following source:

• M. Freudenthal. 2006. Mammal Paleogene zones. personal communication view

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

• International Chronostratigraphic Timescale: Eocene epoch, Lutetian age
• Cenozoic Subepochs: Middle Eocene subepoch
• Mammal Paleogene Zones: MP 13 zone, MP 14 zone, MP 12 zone, MP 15 zone
• Paleogene Mammal Ages of Asia: Irdinmanhan age, Arshantan age, Sharamurunian age
• North American Land Mammal Ages: Bridgerian age, Uintan age
• North American Mammal Subages/Zones: Gardnerbuttian subage, Late Uintan subage, Early Uintan subage, Blacksforkian subage, Twinbuttean subage
• South American Land Mammal Ages: Casamayoran age, Mustersan age, Divisaderan age
• Calcareous Nannoplankton Zones: NP14 zone, NP16 zone, NP15 zone
• Planktic Foraminiferal Zones: M. lehneri PRZ zone, G. nuttalli LOZ zone, G. kugleri/M. aragonensis CRZ zone, A. topilensis PRZ zone, A. cuneicamerata LOZ zone
• Geomagnetic Polarity Chrons: C21 chron, C19 chron, C20 chron
• Cretaceous-Cenozoic of New Zealand: Heretaungan age, Dannevirke epoch, Bortonian age, Porangan age, Arnold epoch

This interval is used in the definition of 95 collections

A total of 3683 collections with 35746 occurrences lie within this time span