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Details of the plumage of the 11th specimen of Archaeopteryx. C Foth et al. Nature 511 , 79-82 (2014) doi:10.1038/nature13467.
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Details of the plumage of the 11th specimen of Archaeopteryx. C Foth et al. Nature 511, 79-82 (2014) doi:10.1038/nature13467