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Fossilized Vomit Reveals How Plesiosaurs Dined on Jurassic Seafloor

Dr. Dirk Knaust, a geologist with the Norwegian energy company Equinor ASA, has identified plesiosaur regurgitalites -- the technical term for fossilized vomit -- from preserved in rock cores drilled beneath the North Sea, offering a rare window into how these long-necked marine reptiles fed in the Middle and Late Jurassic seas.

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