Paleontologists at the Denver Museum of Nature and Science discovered a rare 67.5-million-year-old dinosaur vertebra while drilling for geothermal energy beneath the museum's parking lot, revealing insights into the prehistoric ecosystem that once thrived in the region.

The fossil was found in the Denver Formation, a geologic layer known for its rich fossil record, including dinosaurs like Triceratops, although ornithopod fossils such as this are relatively uncommon in the area.

The region where the fossil was uncovered once featured tropical swamps and floodplains, providing a glimpse into Denver’s ancient environment prior to the mass extinction event.

The discovery was made at a depth of approximately 763 feet during core sampling for a geothermal energy project, which was funded by a $250,000 grant from the Colorado Energy Office.

This project aimed to explore geothermal energy as a sustainable alternative to natural gas, involving drilling nearly 1,000 feet deep, and unexpectedly yielded the fossil in a small core sample.

Researchers describe the find as 'nothing short of magical,' emphasizing the significance of studying deep geological layers with unprecedented precision.

Earth sciences research associate Bob Raynolds highlighted the rarity and importance of this discovery, noting that such precise study of deep layers offers a unique opportunity for the museum.

The fossil, described as hockey-puck-shaped, is one of only two similar discoveries recorded globally in borehole samples, making it an extraordinary find.

Museum curator James Hagadorn expressed surprise at finding a dinosaur bone in such an unexpected location, comparing the odds to 'winning the lottery and getting struck by lightning on the same day.'

Reactions among paleontology experts vary; some find the discovery scientifically unexciting, while others, like Erin LaCount, consider it exciting and significant.

The museum plans to display the fossil as part of a temporary exhibit, highlighting its importance as a scientific and historical discovery for Denver.

The Denver Museum of Nature and Science, renowned for its dinosaur exhibits, continues to uncover new insights into prehistoric life, with this find adding to its legacy.