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Impact Theory (3)

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	The Great Mystery - http://www.ucmp.berkeley.edu/diapsids/extinction.html Information on current and past hypotheses on dinosaur extinctions from the University of California Paleontology Museum.
	Dinosaurs and Extinctions - http://www.cotf.edu/ete/modules/msese/dinosaur.html From the Classroom of the Future website. Includes an introduction to the major theories on the Cretaceous-Tertiary extinction event.
	Dinosaur Volcano Greenhouse Extinction - http://filebox.vt.edu/artsci/geology/mclean/Dinosaur_Volcano_Extinction/pages/studentv.html The dinosaur extinction occurred during a Deccan Traps volcanism-induced greenhouse climate change. By Dewey McLean.
	The K-T Extinction - http://www.ucmp.berkeley.edu/education/events/cowen1b.html Essay by Richard Cowen about the mass extinction of many species that occurred at the end of the Cretaceous Period and how the catastrophe hypotheses hold up to scrutiny.
	Dinosaur Extinction - http://web.ukonline.co.uk/a.buckley/dino.htm Short summaries of some theories of dinosaur extinction.

	101 Crazy Dinosaur Theories - http://palaeo.gly.bris.ac.uk/Communication/Couch/101Theories.html Theories about dinosaur extinction
	The End-Cretaceous (K-T) Extinction - http://hannover.park.org/Canada/Museum/extinction/cretmass.html Discusses geologic setting, possible causes, and species affected by the event at the end of the Mesozoic Era.
	The Cretaceous Extinction - http://park.org/Canada/Museum/extinction/cretmass.html 85 percent of all species died in the K-T extinction at the end of the Cretaceous period. This article provides information on the geological setting, the species affected and the possible causes of the event.
	Timing and Rate of the KT Extinction: What Else Died Out? - http://palaeo.gly.bris.ac.uk/communication/Goddard/page1.html#intro Article by Pete Goddard on this subject covering the sea, the land and the air, and coming to the conclusion that the evidence points to a single catastrophic event.
	Dinosaurs' End: The Gravitational Hypothesis - http://frederic.malmartel.free.fr/Fin_des_dinosaures/eedinosaures1.htm An original, serious and well-argued theory by F.Malmartel explaining dinosaur extinction, especially why dinosaurs disappeared when other reptiles survived.

	Science Daily: A World Ruled By Fungi - http://www.sciencedaily.com/releases/2004/03/040308071720.htm After the extinction event, the dominant life form was the fungi that thrived in the dark. Researchers have constructed a timeline of the fungal takeover and eventual replacement by resurgent plant life.
	The Sylacauga Astrobleme and the Cretaceous-Tertiary Event - http://alastrobleme.org Harold Clinton Gragg considers the evidence for a newly discovered 135 km impact crater in central Alabama, and its significance with regards to the Cretaceous-Tertiary Event.

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