A routine geothermal drilling project at the Denver Museum of Nature & Science has led to a striking paleontological surprise. Scientists unexpectedly discovered a 67.5-million-year-old dinosaur ...

The museum, which houses about 115,000 fossils in its collection, has now placed the ornithopod vertebra on public display.

While drilling a geothermal test well a prehistoric breakthrough was made when a 70-million-year-old fossil was discovered ...