The 67 million-year-old remains had been found four years previously by student Tyler Lyson,16, who came across the bones on his uncle’s land in North Dakota in the USA.

The remarkable find revealed one of the most intact dinosaurs ever discovered, including skin, tendons, ligaments and possibly organs inside its three-dimensional fossil.

This film follows the extraordinary excavation of this prehistoric creature and illustrates the intriguing story of the circumstances surrounding its death and how it came to be mummified.