MassExtinctions


The frequency of mass extinctions in the fossil record.


datasets

The abd package contains data sets and sample code for The
Analysis of Biological Data by Michael Whitlock and Dolph Schluter (2009;
Roberts & Company Publishers).

Kevin M Middleton

The Analysis of Biological Data

MassExtinctions function

A data frame with 21 observations on the following 2 variables.
<dl>
<dt>num.extinctions</dt><dd>a numeric vector</dd> <dt>count</dt><dd>a numeric vector</dd>
 </dl>

Format

Raup, D.M. and J.J. Sepkoski, Jr. 1982. Mass extinctions in the
marine fossil record. <em>Science</em> 215: 1501-1503.

MassExtinctions: Mass Extinction Frequency

Description

Arguments

Format

Source

References

Examples