https://gizmodo.com/jormungandr-mosasaur-sea-dragon-cretaceous-north-dakota-1850973037
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10/30/23 at 6:30pm
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Gizmodo.com
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Isaac Schultz
From Valhalla to Walhalla: This predatory mosasaur hunted Cretaceous seas some 80 million years ago.
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