Feathered dinosaur tail discovered in amber

Feathered dinosaur tail discovered in amber


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If you’re like me, you like your dinosaurs with scales (à la like in Jurassic Park). Despite their portrayal in popular culture, though, I’m sure most of us have heard that, in all likelihood, at least some dinosaurs had feathers; a theory that also follows the long-standing hypothesis that they’re ancient ancestors to modern birds. With the recent discovery of a feathered tail trapped in amber, this long-standing hypothesis may become long-standing fact.

Chinese paleontologist Xing Lida (who co-authored the analysis of the finding published to Current Biology) happened upon the specimen while perusing an amber market in Myanmar, where amber is often sold and carved into jewelery.

X-rays showing the articulate vertebra.

X-rays showing the articulate vertebra | Current Biology

Ryan McKellar, another co-author on the analysis, explained in correspondence with the Washington Post that X-rays of the specimen indicated that it did come from a dinosaur (and not just some prehistoric bird) because of the way the vertebrae were organized. “The tail is flexible and the vertebrae articulate with each other, instead of being fused to form a solid rod,” McKellar said. The latter of which, he explained, is a common characteristic of modern birds. The traces of iron detected in the specimen also suggested the existence of organic material.

The researchers have deduced that the specimen probably came from the group of dinosaurs called coelurosaurs. Though this group contained a wide variety of different dinos in all shapes and sizes, the tail captured in the amber in this instance belonged to a dinosaur that was likely the size of a modern-day sparrow. Once its authenticity is verified, this recent discovery will add to the growing body of evidence that dinosaurs did have feathers, and perhaps give more clues as to which dinos did, and why.

Featured image courtesy of R.C. McKellar/Royal Saskatchewan Museum.


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