A US museum known for its dinosaur displays has made a fossil bone discovery closer to home than anyone ever expected, under its own car park. It came from a hole drilled more than 230 metres deep to study geothermal heating potential for the Denver Museum of Nature and Science.

A museum in Denver has found a fossil that is almost 70 million years old under its parking lot while running an unrelated drilling project. "This may be the most unusual dinosaur discovery I have ever been a part of,