Antarctic skull sheds light on ancient birds 69 million years ago

Antarctic skull sheds light on ancient birds 69 million years ago

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Antarctic skull sheds light on ancient birds 69 million years ago
Author: Julia Musto
Published: Feb, 05 2025 17:44

Antarctica has been called the ‘final frontier’ for humanity’s understanding of life when dinosaurs roamed the planet. O’Connor is the co-author of a related study published Wednesday in the journal Nature. It was found during an expedition in 2011 by the Antarctic Peninsula Paleontology Project. Understanding how the region helped to shape modern ecosystems is currently being researched. “Antarctica is in many ways the final frontier for humanity’s understanding of life during the Age of Dinosaurs,” said co-author Dr. Matthew Lamanna, of Pittsburgh’s Carnegie Museum of Natural History.

 [A digital reconstruction of 69 million-year-old Vegavis iaai shows its long beak. The bird’s features are what set it apart from modern day waterfowl]
Image Credit: The Independent [A digital reconstruction of 69 million-year-old Vegavis iaai shows its long beak. The bird’s features are what set it apart from modern day waterfowl]

The skull itself is long, with a pointed beak and a brain shape that is unique among all known birds previously discovered from the Mesozoic Era, which includes the Cretaceous Period. The features, the researchers said, belong to an extinct bird named Vegavis iaai — and place it in the group that includes all modern birds. Vegavis was first reported 20 years ago by University of Texas at Austin co-author Dr. Julia Clarke. It was proposed to be an early member of modern waterfowl like ducks and geese. But, such birds are exceptionally rare before the end-Cretaceous extinction event and this study is the first with a nearly complete skull.

The skull has preserved its powerful jaw muscles, unlike today’s waterfowl, and its features are consistent with clues suggesting that Vegavis used its feet to propel itself underwater. “Few birds are as likely to start as many arguments among paleontologists as Vegavis,” says lead author Dr. Christopher Torres, a National Science Foundation Postdoctoral Fellow at Ohio University’s Heritage College of Osteopathic Medicine, said. “This new fossil is going to help resolve a lot of those arguments. Chief among them: where is Vegavis perched in the bird tree of life?”.

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