"When people see this stunning fossil and are told that we know what its last meal was because its stomach was so well preserved inside the skeleton, it will almost bring the beast back to life for them, providing a glimpse of how the animal actually carried out its daily activities, where it lived, and what its preferred food was," says geologist Jim Basinger from the University of Saskatchewan in Canada.
Today, across modern ecosystems, large herbivores are thought to be crucial to the landscapes they occupy.
The researchers are pretty sure the exceptionally preserved dinosaur died soon after its last meal, but whether or not that meal is indicative of what other herbivorous dinosaurs of its time ate remains unclear.
Especially when you consider this dinosaur is thought to have died in late spring to mid-summer, and diet is often tied to seasonal changes and landscape variation in food availability.