News of the WeekPaleontology

Is Dinosaur 'Soft Tissue' Really Slime?

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Science  01 Aug 2008:
Vol. 321, Issue 5889, pp. 623
DOI: 10.1126/science.321.5889.623a

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Summary

This week, scientists challenged a 2005 report of intact blood vessels from a Tyrannosaurus rex fossil, arguing that the dinosaur flesh was in fact just coatings of young bacteria. But the original researchers stand by their results, calling the new argument weak.