12.5 - 9.4 Ma

The definition of this interval in the timescale North American Land Mammal Ages is taken from the following source:

• A. D. Barnosky, M. Holmes, R. Kirchholtes, E. Lindsey, K.C. Maguire, A.W. Poust, M.A. Stegner, J. Sunseri, B. Swartz, J. Swift, N.A. Villavicencio and G. Wogan. 2014. Prelude to the Anthropocene: Two new North American Land Mammal Ages (NALMAs). The Anthropocene Review I(3):225-242 view

There are intervals in 13 timescales which overlap this one. show

• International Chronostratigraphic Timescale: Tortonian age, Miocene epoch, Serravallian age
• Cenozoic Subepochs: Middle Miocene subepoch, Late Miocene subepoch
• European Faunal Units: Astaracian subage, Vallesian subage
• European Faunal Zones: MN 7 + 8 zone, MN 9 zone, MN 10 zone
• Central Paratethys Stages: Sarmatian age, Pannonian age
• Neogene Mammal Ages of China: Baodean age, Tunggurian age
• North American Mammal Subages/Zones: Late Clarendonian subage, Early Clarendonian subage
• South American Land Mammal Ages: Chasicoan age, Laventan age, Mayoan age
• Calcareous Nannoplankton Zones: NN8 zone, NN6 zone, NN10 zone, NN7 zone, NN9 zone
• Planktic Foraminiferal Zones: N. acostaensis/G. lenguaensis CRZ zone, G. trilobus PRZ zone, F. fohsi TRZ zone, G. praesiphonifera PRZ zone, G. nepenthes/P. mayeri CRZ zone
• Neogene North Pacific Diatom Biochronology: Denticulopsis dimorpha - Crucidenticula nicobarica zone
• Geomagnetic Polarity Chrons: C5A chron, C4A chron, C5 chron
• Cretaceous-Cenozoic of New Zealand: Waiauan age, Southland epoch, Tongaporutuan age, Taranaki epoch

This interval is used in the definition of 425 collections

A total of 2662 collections with 26254 occurrences lie within this time span