The interval definitions in this timescale are derived from the following source:

• P. L. Gibbard, M. J. Head, and M. J. C. Walker. 2010. Formal ratification of the Quaternary System/Period and the Pleistocene Series/Epoch with a base at 2.58 Ma. Journal of Quaternary Science 25(2):96-102 view

There are 7 timescales which overlap this one. show

• Cenozoic Subepochs
• Ten Million Year Bins
• Neogene Mammal Ages of China
• North American Land Mammal Ages
• North American Mammal Subages/Zones
• South American Land Mammal Ages
• Cretaceous-Cenozoic of New Zealand

This timescale is used in the definition of 269 collections