🔄FROM THE ARCHIVE The contents of this dino’s stomach reveal what the ‘living tank’ actually ate.
Sign up for our email newsletter for the latest science newsin 2017, the dinosaur’s fossil preserves a great deal of its bony armor in place. In fact, the animal is so intricately preserved that paleontologists have been able to work out the dinosaur’s color — rusty red above and lighter below. But the so-called “northern shield” still has secrets to reveal. Inside the dinosaur, protected by its bones, are the remnants of the ankylosaur’s last meal.
Among herbivores, fossil feces can narrow down a few menu options, but fossilized gut contents have been more contentious. It can be difficult to tell whether tatters of plants found inside a plant-eating dinosaur’s skeleton were remnants of a last meal — or simply happened to get mixed in with the sediment that buried the animal. Just this year, in fact,found in a duckbill dinosaur turned out to be prehistoric compost mixed in among the bones during preservation.
But Brown says this specimen stands apart — and is the best-supported case for stomach contents in an herbivorous dinosaur. “And it contains the most detail about revealing what the diet was,” he adds. Brown and colleagues have published their study this week inThe Borealopelta fossil on display at the Royal Tyrell Museum in Alberta, Canada.
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