stages

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

datasets

Functions to describe sampling and diversity dynamics of fossil occurrence datasets (e.g. from the Paleobiology Database). The package includes methods to calculate range- and occurrence-based metrics of taxonomic richness, extinction and origination rates, along with traditional sampling measures. A powerful subsampling tool is also included that implements frequently used sampling standardization methods in a multiple bin-framework. The plotting of time series and the occurrence data can be simplified by the functions incorporated in the package, as well as other calculations, such as environmental affinities and extinction selectivity testing. Details can be found in: Kocsis, A.T.; Reddin, C.J.; Alroy, J. and Kiessling, W. (2019) <doi:10.1101/423780>.

Adam Kocsis

divDyn

Diversity Dynamics using Fossil Sampling Data

Adam T. Kocsis

John Alroy

Carl J. Reddin

Wolfgang Kiessling

Deutsche Forschungsgemeinschaft 

FAU GeoZentrum Nordbayern 

stages function

A <code>data.frame</code> with 95 observations and 10 variables:<dl>
		<dt><code>sys</code></dt>
<dd>Abbreviations of geologic systems.</dd>		<dt><code>system</code></dt>
<dd>Geologic periods.</dd>		<dt><code>series</code></dt>
<dd>Geologic series.</dd>		<dt><code>stage</code></dt>
<dd>Names of geologic stages.</dd>		<dt><code>short</code></dt>
<dd>Abbreviations of geologic stages.</dd>		<dt><code>bottom</code></dt>
<dd>Numeric ages of the bottoms boundaries (earliest ages) of the bins.</dd>		<dt><code>mid</code></dt>
<dd>Numeric age midpoints of the bins, the averages of <code>bottom</code> and <code>top</code>.</dd>		<dt><code>top</code></dt>
<dd>Numeric ages of the tops (latest ages) of the bins.</dd>	<dt><code>dur</code></dt>
<dd>Numeric ages of the durations for the bins.</dd>		<dt><code>stg</code></dt>
<dd>Integer number identifiers of the bins.</dd>	<dt><code>systemCol</code></dt>
<dd>Hexadecimal color code of the systems.</dd>	<dt><code>seriesCol</code></dt>
<dd>Hexadecimal color code of the series.</dd>	<dt><code>col</code></dt>
<dd>Hexadecimal color code of the stages.</dd>	
</dl>

Format

95 bin Phanerozoic time scale based on the stratigraphic stages of Gradstein et al. 2020. — stages

A <code>data.frame</code> with 95 observations and 10 variables:<dl>
		<dt><code>sys</code></dt>
<dd>Abbreviations of geologic systems.</dd>

		<dt><code>system</code></dt>
<dd>Geologic periods.</dd>

		<dt><code>series</code></dt>
<dd>Geologic series.</dd>

		<dt><code>stage</code></dt>
<dd>Names of geologic stages.</dd>

		<dt><code>short</code></dt>
<dd>Abbreviations of geologic stages.</dd>

		<dt><code>bottom</code></dt>
<dd>Numeric ages of the bottoms boundaries (earliest ages) of the bins.</dd>

		<dt><code>mid</code></dt>
<dd>Numeric age midpoints of the bins, the averages of <code>bottom</code> and <code>top</code>.</dd>

		<dt><code>top</code></dt>
<dd>Numeric ages of the tops (latest ages) of the bins.</dd>

	<dt><code>dur</code></dt>
<dd>Numeric ages of the durations for the bins.</dd>

		<dt><code>stg</code></dt>
<dd>Integer number identifiers of the bins.</dd>

	<dt><code>systemCol</code></dt>
<dd>Hexadecimal color code of the systems.</dd>

	<dt><code>seriesCol</code></dt>
<dd>Hexadecimal color code of the series.</dd>

	<dt><code>col</code></dt>
<dd>Hexadecimal color code of the stages.</dd>

	
</dl>

stages: 95 bin Phanerozoic time scale based on the stratigraphic stages of Gradstein et al. 2020.

Description

Usage

Arguments

Format

Details

References