Photos show the typical entombing poses of the Jehol terrestrial vertebrate fossils (a, Psittacosaurus; b-c, Confuciusornis). This boxer-like pose is typical of victims of pyroclastic density ... more 
Photos show the typical entombing poses of the Jehol terrestrial vertebrate fossils (a, Psittacosaurus; b-c, Confuciusornis). This boxer-like pose is typical of victims of pyroclastic density currents, resulting from postmortem tendons and musc less 
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LiveScience.com | Photo By Baoyu Jiang
Tue, Feb 4, 2014 11:10 AM EST