stages2018: 95 bin Phanerozoic time scale based on the stratigraphic...
In adamkocsis/divDyn: Diversity Dynamics using Fossil Sampling Data

stages2018

R Documentation

95 bin Phanerozoic time scale based on the stratigraphic stages of Ogg et al. (2016) with updated dates in some intervals (2018).

Description

Stage-level (age-level) timescale used in some analyses.

Usage

data(stages2018)

Format

A data.frame with 95 observations and 10 variables:

sys: Abbreviations of geologic systems.
system: Geologic periods.
series: Geologic series.
stage: Names of geologic stages.
short: Abbreviations of geologic stages.
bottom: Numeric ages of the bottoms boundaries (earliest ages) of the bins.
mid: Numeric age midpoints of the bins, the averages of bottom and top.
top: Numeric ages of the tops (latest ages) of the bins.
dur: Numeric ages of the durations for the bins.
stg: Integer number identifiers of the bins.
systemCol: Hexadecimal color code of the systems.
seriesCol: Hexadecimal color code of the series.
col: Hexadecimal color code of the stages.

Details

This is an example time scale object that can be used in the Phanerozoic-scale analyses. Example occurrence datasets related to the package use the variable stg when referring to this timescale. This is the stages object used until divDyn version 0.8.1.