Palaeontologists have discovered X-ray evidence of proteins in fossil feathers that sheds new light on feather evolution.
Palaeontologists at University College Cork in Ireland have discovered X-ray evidence of proteins in fossil feathers that sheds new light on feather evolution.
The team analysed 125-million-year-old feathers from the dinosaur Sinornithosaurus and the early bird Confuciusornis from China, plus a 50-million-year-old feather from the USA. To help interpret the chemical signals preserved in the fossil feathers, the team also ran experiments to help understand how feather proteins break down during the fossilization process.
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