This image shows the
biodiversity during the
Phanerozoic. Note that this is a result of changes in both the rate of extinctions and the rate of new originations. The
Dresbachian extinction event (about 502 million years ago) in particular is obscured by nearly immediate replacement with new genera.
Colour code:
grey = total known genera from Sepkowski's catalogue (cited by Rohde & Muller)
green = "well-defined genera", i.e. known genera excluding those represented by "single occurrences" and those whose dates are uncertain.
red = trend for "well-defined genera". Derived by fitting a third-order polynomial to the data.
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the
Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the
same or compatible license as the original.
This licensing tag was added to this file as part of the GFDL
licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue
Information
Captions
Biodiversity (in thousands of genera) since the Cambrian explosion of evolution.
{{Information |Description= This figure shows the
genusextinction intensity, i.e. the fraction of genera that are present in each interval of time but do not exist in the following interval. The data itself is taken from Rohde & Muller (2005, Su
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