Fossil feathers are usually preserved as carbonaceous films and impressions in lacustrine and marine sediments, or embedded in amber, but rarely mineralized. In a new study, paleontologists examined mineralized plumage of a 30,000-year-old…
Fossil feathers are usually preserved as carbonaceous films and impressions in lacustrine and marine sediments, or embedded in amber, but rarely mineralized. In a new study, paleontologists examined mineralized plumage of a 30,000-year-old…