eras | R Documentation |
A dataset containing the boundary ages, abbreviations, and colors for the eras of the Geologic Time Scale. Based on The ICS International Chronostratigraphic Chart (v2023/06), by Cohen, Finney, Gibbard, and Fan.
eras
A data frame with 10 rows and 5 variables:
era name
maximum age, in millions of years
minimum age, in millions of years
era name abbreviations
the colors for each era, according to the Commission for the Geological Map of the World
the label colors for each era, either white or black, whichever has better contrast with the background color, based on recommendations by the International Telecommunication Union
https://stratigraphy.org via https://macrostrat.org/api/v2/defs/intervals?timescale=international%20eras
Other built-in timescales:
eons
,
epochs
,
periods
,
stages
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