Extinction

	BBC Extinction Files : Broad, non-technical coverage of the whole field; a good introductory work. Includes mass extinctions, theories, the fossil record, FAQs, and a glossary. - www.bbc.co.uk/education/darwin/exfiles/massintro.htm
	Extinction : 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. - www.peripatus.gen.nz/paleontology/extinction.html
	Extinctions: Cycles of Life and Death Through Time : Covers patterns and periodicity of extinction, with discussions of major mass extinctions and minor extinction events. - park.org/Canada/Museum/extinction/homepg.html
	Mass Extinction : A mathematical model for mass extinction. - www.lassp.cornell.edu/newmme/science/extinction.html
	Phanerozoic Extinctions : Fully referenced BSc honours project on the History of Mass Extinctions with special reference to the proposed sixth extinction taking place at the present time. - member.biodiversity.org.uk/teddy/projecta/
	The Late Devonian Mass Extinction : A professional technical paper discussing whether the Late Devonian (Frasnian-Famennian) mass extinction was initiated by an extraterrestrial impact or an earth-bound event. - www.lpi.usra.edu/meetings/impact2000/pdf/3072.pdf