A new dinosaur fossil at the Denver Museum of Nature & Science was found buried hundreds of feet under the facility's parking lot in January, making the herbivorous animal's remains the oldest and deepest dinosaur fossil ever discovered in the city.

The Denver Museum of Nature & Science already houses a vast trove of dinosaur bones, but it recently received an unexpected addition to the collection. The latest fossil didn’t come from a generous benefactor or anonymous donor–it came from beneath the museum’s own parking lot.

The partial vertebra appeared inside a 2.5-inch-diameter column of rock that researchers drilled, earning the title of the oldest and deepest dinosaur fossil found in Denver