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Pint-sized bird may be smallest dinosaur yet: study


PTI, Mar 12, 2020, 10:45 AM IST

Paris: Tinier than the teeniest bird, older than T-Rex and perfectly preserved for eternity: scientists have identified a 100-million-year-old flying dinosaur encased in amber that may be the smallest yet discovered.

The skull of Oculudentavis khaungraae was found in a globule of amber in Myanmar, offering researchers a startlingly clear view of its features.

“When I first saw it I was blown away,” said Jingmai O’Connor, a paleontologist from the Chinese Academy of Sciences and lead author of the study published in Nature on Wednesday.

“It’s pretty exquisitely preserved and really weird looking, with its unique scleral ring (eye bones) and a large number of teeth,” she told AFP.

The preserved skull is just 7.1 millimeters (less than one-third of an inch) long, likely making it the smallest dinosaur yet discovered. It would have been smaller than the smallest bird alive today, the bee hummingbird.

The team even refer among themselves to the specimen as “Teenie Weenie”, O’Connor said.

Despite its minuscule size, researchers believe it hunted insects, using its sharp teeth and large eyes to home in on prey.

Unlike fossils encased in rock, amber specimens still retain their soft tissue, showing scientists their original color and morphology.

As to whether Teenie is a bird or a dinosaur, O’Connor said the lines were blurry.

“We think it’s a bird the skull has a shape that only occurs in birds and some dinosaurs,” she said,

“However there are no skull characteristics that define birds, therefore, it could be a dinosaur or even something else,” she added.

Writing in a linked editorial, Roger Benson from Oxford University’s Department of Earth Sciences said the discovery suggests birds may have evolved miniature body sizes much earlier than thought.

The skull of Oculudentavis khaungraae was found in a globule of amber in Myanmar, offering researchers a startlingly clear view of its features.

This indicates that, only shortly after their origins late in the Jurassic period (which lasted from about 201 million to 145 million years ago), birds had already attained their minimum body sizes,” he said.

And although it’s encased in amber, there’s no risk of scientists bringing it back to life, as a certain Steven Spielberg film.

“There are most certainly fragments of DNA preserved inside but we’ll never reach ‘Jurassic Park’,” said O’Connor.

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