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

This interval is used in the definition of 1667 collections

A total of 4017 collections with 40171 occurrences lie within this time span