File:Phanerozoic Biodiversity.svg

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Summary

Description

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.
yellow = the "Big Five" mass extinctions.
blue = other extinction events.

Reference: Rohde, R.A., and Muller, R.A. (2005-03). "Cycles in fossil diversity". Nature 434: 208-210.

Date

2 February 2008

Source

Phanerozoic_Biodiversity.png

Author

SVG version by Albert Mestre

Permission
(Reusing this file)

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.

	This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

	You are free: 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.CC BY-SA 3.0truetrue

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Licensing

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.

	This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

	You are free: 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.CC BY-SA 3.0truetrue

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	11:57, 24 September 2021	784 × 464 (194 KB)	Mikhail Ryazanov	rm. capitalitis
	17:25, 13 September 2012	784 × 464 (204 KB)	Fjalnes	added periods; replaced triangles
	13:21, 27 October 2010	784 × 464 (211 KB)	SeL media	fixed typos and reversed time axis
	15:19, 9 August 2009	784 × 464 (145 KB)	Ysangkok	simplify
	21:09, 2 February 2008	784 × 464 (273 KB)	Cameta	{{Information \|Description= This figure shows the genus extinction 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