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Soft tissue traces found in Archaeopteryx

Just out in PNAS: X-ray fluorescence imaging of the Thermopolis specimen of 
Archaeopteryx shows traces of the original elements remain in the original 
fossil. The most dramatic evidence is phosphorous along the rachis of the 
feathers. New Scientist has my story at 
 and it includes a link to PNAS. 
Jeff Hecht, science & technology writer
jeff@jeffhecht.com or jhecht@nasw.org
Boston Correspondent: New Scientist magazine
Contributing Editor: Laser Focus World
525 Auburn St., Auburndale, MA 02466 USA
tel. 617-965-3834  http://www.jeffhecht.com