https://www.science20.com/news_articles/dinobird_plumage_patterns_revealed_xrays-114580
'Dinobird' Plumage Patterns Revealed By X-Rays | Science 2.0
X-ray experiments have found chemical traces of the original 'dinobird' Archaeopteryx and dilute traces of plumage pigments in a 150 million-year-old fossil....
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