20.44 - 15.98 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, Orleanian subage
• European Faunal Zones: MN 2 zone, MN 4 zone, MN 3 zone
• Neogene Mammal Ages of China: Shanwangian age, Xiejiaan age
• North American Land Mammal Ages: Barstovian age, Arikareean age, Hemingfordian age
• North American Mammal Subages/Zones: Late Hemingfordian subage, Early Barstovian subage, late Late Arikareean subage, Early Hemingfordian subage, early Late Barstovian subage, late Early Arikareean subage, early Early Arikareean subage, early Late Arikareean subage, late Late Barstovian subage, Harrisonian subage
• South American Land Mammal Ages: Santacrucian age, Friasian age, Colhuehuapian age
• Cretaceous-Cenozoic of New Zealand: Otaian age, Pareora epoch, Altonian age

This interval is used in the definition of 1651 collections

A total of 3896 collections with 38831 occurrences lie within this time span