Clues for dinosaurs’ diets found in the chemistry of their fossil teeth
Peer-Reviewed Publication
Updates every hour. Last Updated: 4-Aug-2025 17:11 ET (4-Aug-2025 21:11 GMT/UTC)
Researchers at The University of Texas at Austin analyzed the calcium isotopes in the teeth enamel of four different dinosaur species to discover what they ate. They found that some dinosaurs were discerning eaters, with different species preferring different plant parts. This helps explain how these dinosaurs, which all roamed the western U.S. during the Late Jurassic, were all able to coexist in the same ecosystem.
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