The feather of an extinct Confuciusornis bird may have had colors similar to those in this modern feather from a zebra finch, according to the new study.
Feather color in Confuciusornis—an early beaked bird found in 120- to 130-million-year-old fossil beds in Liaoning Province, China—was inferred from microscopic melanosomes preserved in a fossil specimen.
Two types of melanosomes were found. Eumelanosomes (such as the finch eumelanosomes inset at left) are rodlike and associated with the colors black and grey in living birds. Phaeomelanosomes (inset right) are spherical and produce colors ranging from reddish brown to yellow. A lack of melanosomes makes white.
Using a scanning electron microscope, the researchers found that a fossil Confuciusornis feather contained both types of melanosomes and was likely multicolored in life.
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