23.03 - 20.44 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. 2023. The ICS International Chronostratigraphic Chart v2023/09. view

There are intervals in 9 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Miocene epoch
• Cenozoic Subepochs: Early Miocene subepoch
• European Faunal Units: Agenian subage
• European Faunal Zones: MN 2 zone, MN 1 zone
• Neogene Mammal Ages of China: Xiejiaan age
• North American Land Mammal Ages: Arikareean age
• North American Mammal Subages/Zones: late Late Arikareean subage, late Early Arikareean subage, early Early Arikareean subage, early Late Arikareean subage, Harrisonian subage
• South American Land Mammal Ages: Colhuehuapian age, Deseadan age
• Cretaceous-Cenozoic of New Zealand: Pareora epoch, Otaian age, Landon epoch, Waitakian age

This interval is used in the definition of 553 collections

A total of 576 collections with 4522 occurrences lie within this time span