Fossilized Sauropod Guts Confirm They Were Vegetarian and Chewed Little

TL;DR
A fossilized gut content of a long-necked sauropod dinosaur provides the first direct evidence that these dinosaurs were herbivores, containing plant material such as conifer leaves and flowering plants, supporting the long-held belief that they ate only plants and did not chew their food.
- First Fossil Proof Found That Long-Necked Dinosaurs Were Vegetarians The New York Times
- Paleontologists dig through fossilized dino guts to see what’s inside Yahoo
- Fossilized dinosaur gut shows that sauropods barely chewed Phys.org
- We’ve Found Sauropod Stomach Contents For The First Time, Revealing They Had Terrible Manners IFLScience
- Sauropod dinosaur's last meal reveals that it didn't bother to chew New Scientist
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