The tracks show that two types of ankylosauruses co-existed at a time and place where they were once thought to be extinct.

Ankylosaur dinosaur tracks recently discovered in Canada prove club-tailed armored dinosaurs lived here 100 million years ago.

The investigation began when Charles Helm, a co-author of the study and a scientific advisor at Tumbler Ridge Museum, documented three-toed tracks around Tumbler Ridge, a municipality in the foothills ...