tens

Roughly 10 million year 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 

tens function

A <code>data.frame</code> with 49 observations and 9 variables:<dl>
		<dt>X10</dt>
<dd>The name of the bin: Period and number.</dd>		<dt>Ocean</dt>
<dd>The primary state of the oceans from the point of carbonate precipitation. <code>ar</code> indicates aragonitic, <code>cc</code> indicates calcitic conditions.</dd>		<dt>Climate</dt>
<dd>Primary climatic characteristic: <code>w</code> denotes warm, <code>c</code> denotes cold.</dd>		<dt><code>bottom</code></dt>
<dd>Numeric ages of the bottom boundaries (earliest ages) of the bins.</dd> 	<dt><code>mid</code></dt>
<dd>Numeric ages 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 of the bins.</dd> 	<dt><code>ten</code></dt>
<dd>Integer number identifiers of the bins. §correct to num!</dd>
</dl>

Format

The 10 million year resolution timescale of the Paleobiology Database — tens

A <code>data.frame</code> with 49 observations and 9 variables:<dl>
		<dt>X10</dt>
<dd>The name of the bin: Period and number.</dd>

		<dt>Ocean</dt>
<dd>The primary state of the oceans from the point of carbonate precipitation. <code>ar</code> indicates aragonitic, <code>cc</code> indicates calcitic conditions.</dd>

		<dt>Climate</dt>
<dd>Primary climatic characteristic: <code>w</code> denotes warm, <code>c</code> denotes cold.</dd>

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

 	<dt><code>mid</code></dt>
<dd>Numeric ages 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 of the bins.</dd>

 	<dt><code>ten</code></dt>
<dd>Integer number identifiers of the bins. §correct to num!</dd>


</dl>

tens: The 10 million year resolution timescale of the Paleobiology Database

Description

Usage

Arguments

Format

Details