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Tuesday, September 27, 2022

Ancient cemetery of flying reptiles unearthed in Chile’s Atacama desert | Chile

Scientists in Chile have unearthed a rare cemetery with well-preserved bones of ancient flying reptiles that roamed the Atacama desert more than 100m years ago.

The remains belong to pterosaurs, scientists determined, flying creatures that lived alongside dinosaurs and had a long wingspan and fed by filtering water through long, thin teeth, similar to flamingos.

The group of scientists, led by Jhonatan Alarcón, an investigator at the University of Chile, have been searching for pterosaurs for years, but this discovery surpassed their hopes.

“This has global relevance because these types of findings are relatively rare,” Alarcón said. “Almost everywhere in the world, the pterosaur remains that are found are isolated.”

The discovery of this rare cemetery will allow scientists to study the pterosaur’s habits, not just its anatomy, he said.

“We could determine how groups of these animals were composed, if they raised their babies or not,” he added.

Pterosaur fossils found in the Atacama desert.
Pterosaur fossils found in the Atacama desert. Photograph: Universidad de Chile/Reuters

Another surprise was how well-preserved the bones scientists discovered were.

“Most pterosaur bones that are found are flattened, broken,” said David Rubilar, head of paleontology at Chile’s Museum of National History. “Nevertheless we were able to recover preserved three-dimensional bones from this site.”

This well help scientists better understand pterosaur anatomy.

The find was made 65km (40.39 miles) away from another site where other pterosaur remains were found. This discovery supports scientists’ hypothesis that pterosaurs were once widespread in northern Chile.

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