A new study of a Brazilian fossil suggests that feathers may have evolved more than 150 million years before the heyday of the dinosaurs.
the fossil to Brazil, where it will be displayed at the Earth Sciences Museum in Rio de Janeiro. “It is great that the fossil is back in Brazil,” Pêgas says.single-stranded fibers and featherlike branching ones
The finding means feathers must have evolved far earlier than was thought, McNamara says. “The most parsimonious explanation is that feathers were present in the common ancestor of [pterosaurs and dinosaurs],” about 250 million years ago during the Triassic period. But paleontologist David Martill from the University of Portsmouth says the small branched structures “look nothing like feathers.” He thinks they are a different kind of keratinous covering, though he agrees they were probably spectacularly colored.
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