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Re: [dinosaur] Eoconfuciusornis feather keratin and melanosomes detected



On 11/21/2016 04:41 PM, Ben Creisler wrote:
> We report fossil evidence of feather structural protein (beta-keratin) from
> a 130-My-old basal bird (Eoconfuciusornis) from the famous Early Cretaceous
> Jehol Biota, which has produced many feathered dinosaurs, early birds, and
> mammals. Multiple independent molecular analyses of both microbodies and
> associated matrix recovered from the fossil feathers confirm that these
> microbodies are indeed melanosomes. We use transmission electron microscopy
> and immunogold to show localized binding of antibodies raised against
> feather protein to matrix filaments within these ancient feathers. Our work
> sheds new light on molecular constituents of tissues preserved in fossils.


pretty amazing.  I would like to see the chemistry and understand how it
was derived.


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