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Mass Extinction - http://www.lassp.cornell.edu/newmme/science/extinction.html
A mathematical model for mass extinction. |
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Extinction - http://www.peripatus.gen.nz/paleontology/extinction.html
A number of extinction concepts are discussed and loosely defined, followed by a survey of some important extinction and "extinction-like" events, primarily from the Phanerozoic. |
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The Late Devonian Mass Extinction - http://www.lpi.usra.edu/meetings/impact2000/pdf/3072.pdf
A professional technical paper discussing whether the Late Devonian (Frasnian-Famennian) mass extinction was initiated by an extraterrestrial impact or an earth-bound event. |
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Our Nemesis? - http://www.thekeyboard.org.uk/Our%20Nemesis.htm
Article on a paper by David Raup and John Sepkoski, two respected paleontologists, making the remarkable claim that great catastrophes occur on the Earth every 26 million years, |
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Extinctions: Cycles of Life and Death Through Time - http://park.org/Canada/Museum/extinction/homepg.html
Covers patterns and periodicity of extinction, with discussions of major mass extinctions and minor extinction events. |