1.9 - 0.42 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: Gelasian age, Pleistocene epoch, Chibanian age, Calabrian age
• Cenozoic Subepochs: Early Pleistocene subepoch, Middle Pleistocene subepoch
• European Faunal Units: Villafranchian subage
• European Faunal Zones: MN 17 zone
• Cenozoic Subepochs of Southern Europe: Ionian subepoch
• Neogene Mammal Ages of China: Nihewanian age
• North American Land Mammal Ages: Irvingtonian age, Blancan age
• North American Mammal Subages/Zones: Senecan subage, Sappan subage, Cudahyan subage, Rexroadian subage
• South American Land Mammal Ages: Sanandresian age, Ensenadan age, Uquian age
• Planktic Foraminiferal Zones: G. ruber PRZ zone, G. fistulosus HOZ - Atlantic zone
• Neogene North Pacific Diatom Biochronology: Actinocyclus oculatus zone, Proboscia curvirostris zone
• Geomagnetic Polarity Chrons: C1 chron, C2 chron
• Cretaceous-Cenozoic of New Zealand: Wanganui epoch, Nukumaruan age, Castlecliffian age

This interval is used in the definition of 1980 collections

A total of 16657 collections with 154766 occurrences lie within this time span