periods | R Documentation |
A dataset containing the boundary ages, abbreviations, and colors for the periods of the Geologic Time Scale. Based on The ICS International Chronostratigraphic Chart (v2023/06), by Cohen, Finney, Gibbard, and Fan.
periods
A data frame with 22 rows and 5 variables:
period name
maximum age, in millions of years
minimum age, in millions of years
period name abbreviations
the colors for each period, according to the Commission for the Geological Map of the World
https://stratigraphy.org via https://macrostrat.org/api/v2/defs/intervals?timescale=international%20periods
Other timescales:
eons
,
epochs
,
eras
,
stages
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