DENVER (KDVR) — The Denver Museum of Nature and Science (DMNS) announced on Wednesday that it had discovered a nearly 70-million-year-old dinosaur fossil underneath its parking lot.

The partial-bone fossil was found 763 feet below the lot during a geothermal test drilling project in January, according to the museum.

“This is a scientifically and historically thrilling find for both the Museum and the larger Denver community,” said James Hagadorn, the curator of geology at the DMNS, in a statement.

The museum said the fossil is the deepest and oldest dinosaur fossil ever found within Denver city limits.

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