On a fateful day in the Early Cretaceous, a large, four-legged armored dinosaur dropped dead on a beach in what is now modern day Alberta. The remains of this 18-foot-long beast drifted out to sea and eventually sank, where it became buried in a thick layer of mud. Over time, the dinosaur became petrified, its soft…
Source: Gizmodo – Incredibly Well-Preserved Fossil Changes Our Understanding of Armored Dinosaurs