A bizarre reptile once scurried through the Triassic treetops with an extravagant crest on its back, one made from neither scale, nor bone, nor feather. The extinct creature’s 247-million-year-old fossils immediately stood out to paleontologists. The impressive appendage on its back looks like a frill of overlapping feathers at first glance, but it’s much older than the earliest fossilized feather, …
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