Sauropod's Gut Contents Offer First Direct Proof of Dinosaur Diet
- In May 2017, researchers excavated a nearly complete subadult Diamantinasaurus matildae fossil nicknamed Judy near Winton, Queensland, Australia.
- The team discovered well-preserved gut contents that revealed sauropods were herbivores who barely chewed, confirming long-held but indirect dietary hypotheses.
- The fossilized abdominal contents included a variety of unchewed plant material such as conifers, seed ferns, and flowering plants, indicating that Judy likely consumed vegetation from different heights within her environment.
- Lead author Stephen Poropat stated this represents the first genuine sauropod gut contents found worldwide, showing plants were severed but not chewed, supporting bulk feeding over 130 million years.
- This finding implies sauropods broadly shaped ancient ecosystems as indiscriminate bulk feeders relying on gut microbes for digestion, though the single data point limits broader dietary conclusions.
27 Articles
27 Articles
Good better beast: Thanks to the fossilized stomach contents of a 100 million year old dino, more is now known about its eating habits. Good chewing was there…


What a dinosaur ate 100 million years ago—Preserved in a fossilized time capsule
A prehistoric digestive time capsule has been unearthed in Australia: plant fossils found inside a sauropod dinosaur offer the first definitive glimpse into what these giant creatures actually ate. The remarkably preserved gut contents reveal that sauropods were massive, indiscriminate plant-eaters who swallowed leaves, conifer shoots, and even flowering plants without chewing relying on their gut microbes to break it all down.
What and how did the biggest dinosaurs eat? First fossilised sauropod guts found in Australia
Palaeontologists in Australia have uncovered the first stomach contents of a sauropod giving insights into the diets of the largest land animals of all time. Diamantinasaurus matildae is a sauropod which has been found in the sheep-grazing country around Winton in the Australian state Queensland. Several Diamantinasaurus specimens have been found over recent years dating to the middle of the Cretaceous period which lasted 145 to 66 million year…
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