Scientists have discovered exceptionally preserved feathers from a Late Cretaceous bird within a dinosaur coprolite found in Montana's Hell Creek Formation. These feathers, described as the best-preserved from that era, offer crucial insights into avian evolution and the Cretaceous-Paleogene extinction event. The research suggests that the plumage of aquatic birds like hesperornithiformes may have been less effective for insulation, contributing to their extinction compared to the Neornithes, which survived to become the ancestors of modern birds. AI
RANK_REASON The cluster reports on a scientific paper detailing the discovery of fossilized bird feathers. [lever_c_demoted from research: ic=1 ai=0.1]
- Cretaceous-Paleogene mass extinction
- Current Biology
- Earth
- Field Museum of Natural History
- Hell Creek Formation
- Hesperornithiformes
- Mercury
- Montana
- Neornithes
- O'Connor
- Tyrannosaurus rex
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