eras: Era data from the International Commission on Stratigraphy...

erasR Documentation

Era data from the International Commission on Stratigraphy (v2023/06)

Description

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.

Usage

eras

Format

A data frame with 10 rows and 5 variables:

name

era name

max_age

maximum age, in millions of years

min_age

minimum age, in millions of years

abbr

era name abbreviations

color

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

lab_color

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

Source

https://stratigraphy.org via https://macrostrat.org/api/v2/defs/intervals?timescale=international%20eras

See Also

Other built-in timescales: eons, epochs, periods, stages


deeptime documentation built on Oct. 30, 2024, 9:08 a.m.