A new view of mass extinctions...

How many mass extinctions are on record? > Six - Didn't mean to be so brief but John Clinch added some info regarding six and I thought this site might want to hear from Niles Eldridge: - http://www.actionbioscience.org/newfrontiers/eldredge2.html

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A new view of mass extinctions... xeno6696 2009-06-30, 05:44 PM
- A new view of mass extinctions... David Turell 2009-07-01, 04:58 AM
  - A new view of mass extinctions... xeno6696 2009-07-01, 01:00 PM
    - A new view of mass extinctions... David Turell 2009-07-01, 01:40 PM
      - A new view of mass extinctions... xeno6696 2009-07-02, 03:15 AM
        
        A new view of mass extinctions... John Clinch 2009-07-02, 10:42 AM
        
        A new view of mass extinctions... David Turell 2009-07-02, 01:31 PM
        
        A new view of mass extinctions... David Turell 2009-07-02, 03:28 PM
        
        A new view of mass extinctions... xeno6696 2009-07-03, 09:37 PM
        
        A new view of mass extinctions... George Jelliss 2009-07-04, 04:20 PM
        
        A new view of mass extinctions... David Turell 2009-07-04, 05:32 PM
        
        A new view of mass extinctions... xeno6696 2009-07-04, 06:44 PM
        
        A new view of mass extinctions... xeno6696 2009-07-04, 06:39 PM
        
        A new view of mass extinctions...the Permian David Turell 2011-01-24, 04:34 PM
        
        A new view of mass extinctions: recovery time meaning David Turell 2019-04-13, 08:26 PM

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A new view of mass extinctions... (Endings)