Huge Toothless Pterosaurs Once Ruled The Skies, Fossils Suggest

August 20, 2014 12:39 PM

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Huge Toothless Pterosaurs Once Ruled The Skies, Fossils Suggest

Giant toothless pterosaurs with wingspans stretching 39 feet (12 meters) across ruled the skies 60 million years ago, and new research suggests that these ancient flying creatures once had a worldwide presence, and likely played an important role in the Late Cretaceous ecosystem.

Despite their formidable size, the pterosaurs in the Azhdarchidae family had no teeth. The new research suggests they replaced their toothed relatives as the dominant species when high levels of carbon dioxide killed off important microscopic marine creatures, leading to a mass extinction about 90 m...

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