21.7 - 18.7 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 13 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Aquitanian age, Burdigalian age, Miocene epoch
• Cenozoic Subepochs: Early Miocene subepoch
• European Faunal Units: Agenian subage, Orleanian subage
• European Faunal Zones: MN 2 zone, MN 3 zone
• Neogene Mammal Ages of China: Xiejiaan age
• North American Land Mammal Ages: Arikareean age
• North American Mammal Subages/Zones: early Late Arikareean subage, late Late Arikareean subage, Harrisonian subage, early Early Arikareean subage, late Early Arikareean subage
• South American Land Mammal Ages: Deseadan age, Colhuehuapian age
• Calcareous Nannoplankton Zones: NN2 zone, NN3 zone
• Planktic Foraminiferal Zones: G. binaiensis PRZ zone, Globigerinatella sp./C. dissimilis CRZ zone, P. kugleri TRZ zone
• Neogene North Pacific Diatom Biochronology: Crucidenticula sawamurae - Thalassiosira fraga zone, Thalassiosira praefraga zone
• Geomagnetic Polarity Chrons: C6A chron, C6AA chron, C6 chron
• Cretaceous-Cenozoic of New Zealand: Pareora epoch

This interval is used in the definition of 74 collections

A total of 369 collections with 3426 occurrences lie within this time span