4 - 3.75 Ma

The definition of this interval in the timescale Calcareous Nannoplankton Zones is taken from the following source:

• F. M. Gradstein, J. G. Ogg, M. D. Schmitz and G. M. Ogg. 2020. Geologic Time Scale 2020 view

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

• International Chronostratigraphic Timescale: Pliocene epoch, Zanclean age
• Cenozoic Subepochs: Early Pliocene subepoch
• European Faunal Units: Ruscinian subage
• European Faunal Zones: MN 15 zone
• Neogene Mammal Ages of China: Yushean age
• North American Land Mammal Ages: Blancan age
• North American Mammal Subages/Zones: Rexroadian subage, Senecan subage
• South American Land Mammal Ages: Montehermosan age, Chapadmalalan age
• Calcareous Nannoplankton Zones: NN14 zone
• Planktic Foraminiferal Zones: G. margaritae HOZ zone, S. seminulina HOZ - Atlantic zone
• Neogene North Pacific Diatom Biochronology: Neodenticula kamtschatica zone
• Geomagnetic Polarity Chrons: C2A chron
• Cretaceous-Cenozoic of New Zealand: Opoitian age, Wanganui epoch

This interval is used in the definition of 461 collections

A total of 304 collections with 4035 occurrences lie within this time span