Dinosaurs May Have Dined on Seaweed, Study Suggests

Oct 1, 2026 - 14:15

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Dinosaurs May Have Dined on Seaweed, Study Suggests

This chart shows the average chemical signatures in the tooth enamel of different animal groups from the Cretaceous period. The vertical axis tracks carbon: the higher an animal’s carbon-13 reading, the more its diet likely came from the sea. The horizontal axis tracks oxygen, which reflects the local water the animals drank, such as a river, lake or seaway. Image credit: Forster et al., doi: 10.3389/fevo.2026.1895247.

Paleontologists studying Cretaceous fossils have repeatedly found that the teeth of many ancient animals contain more of a heavier carbon isotope, carbon-13, than their presumed plant-based diets would predict.

The post Dinosaurs May Have Dined on Seaweed, Study Suggests appeared first on Sci.News: Breaking Science News.

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