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A dataset containing the boundary ages, abbreviations, and colors for the epochs of the Geologic Time Scale. Based on The ICS International Chronostratigraphic Chart (v2022/10), by Cohen, Finney, Gibbard, and Fan.

Usage

epochs

Format

A data frame with 34 rows and 5 variables:

name

epoch name

max_age

maximum age, in millions of years

min_age

minimum age, in millions of years

abbr

epoch name abbreviations

color

the colors for each epoch, according to the Commission for the Geological Map of the World

See also

Other timescales: eons, eras, periods, stages