Nothing quite fits the moniker “gentle giant” more than sauropods. These gargantuan dinosaurs could reach up to 123 feet long and weigh up to seven tons. Sauropods have long been believed to be herbivores, munching on leaves during the Jurassic and Cretaceous periods.

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,

No genuine sauropod gut contents had ever been found anywhere before, despite sauropods being known from fossils found on every continent and despite the group being known to span at least 130 million years of time,