42.6 - 39.1 Ma

The definition of this interval in the timescale Cretaceous-Cenozoic of New Zealand is taken from the following source:

• J. I. Raine, A. G. Beu, A. F. Boyes, H. J. Campbell, R. A. Cooper, J. S. Crampton, M. P. Crundwell, C. J. Hollis, and H. E. G. Morgans. 2015. Revised Calibration of the New Zealand Geological Timescale: NZGT2015/1. GNS Science Report 2012(39) view

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

• International Chronostratigraphic Timescale: Bartonian age, Lutetian age, Eocene epoch
• Cenozoic Subepochs: Middle Eocene subepoch
• Mammal Paleogene Zones: MP 15 zone, MP 16 zone, MP 12 zone, MP 11 zone, MP 14 zone, MP 13 zone
• Paleogene Mammal Ages of Asia: Arshantan age, Sharamurunian age, Irdinmanhan age
• North American Land Mammal Ages: Uintan age, Duchesnean age
• North American Mammal Subages/Zones: Late Uintan subage, Early Uintan subage
• South American Land Mammal Ages: Divisaderan age, Mustersan age
• Cretaceous-Cenozoic of New Zealand: Arnold epoch

This interval is used in the definition of 41 collections

A total of 1597 collections with 20016 occurrences lie within this time span