CT Scans Show Dinosaur Tail Was a Bone Crusher

To estimate just how hard Ankylosaurus could hit with its tail club, Canadian researchers examined CT scans of several fossilized tails from dinos of different sizes. Combining the imaging data with measurements of the dinosaur’s backbone, they determined the Ankylosaurus could swing its tail in a 100 degree lateral arc, and that larger clubs could generate forces strong enough to crush bone.