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[personal profile] dracodraconis
Recently-discovered 67-million year -old dinosaur remains included petrified tissue within an uncollapsed envelope of petrified skin. The remains provide an unprecedented and detailed view into the soft-tissue structures of a typical dinosaur. Remains of this type are rare because the conditions under which the dinosaur died had to have result in it being mummified, so that the soft tissues were mineralized before they had a chance to decay.

January 2010

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