SouthernWorldwide.com – A routine parking lot renovation project at Dinosaur National Monument has led to a significant paleontological discovery, with dinosaur fossils unearthed at the site for the first time in over a century.
Construction workers stumbled upon the ancient remains near the Quarry Exhibit Hall in mid-September, shortly after removing asphalt. The excavation revealed dinosaur-bearing sandstone, prompting the National Park Service to halt construction immediately. Park staff officially identified the fossils on September 16, allowing paleontologists to assess the find.
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Initial assessments suggest the fossils belong to a Diplodocus, a large, long-necked dinosaur species frequently found in the monument’s historic bonebed.
The excavation process involved a collaborative effort, with park officials, a Utah Conservation Corps crew, volunteers, and construction workers all contributing to the careful removal of the fossils.
Between mid-September and mid-October, approximately 3,000 pounds of fossils and surrounding rock were excavated. This material is currently undergoing cleaning and study at the Utah Field House of Natural History State Park Museum in Vernal. Visitors to the museum have the unique opportunity to observe the preparation process firsthand in the dedicated fossil lab.
The site of the discovery had not been subjected to excavation since 1924. Fossil removal efforts at that time concluded after a series of digs conducted in the early 20th century by prominent institutions such as the Carnegie Museum, the Smithsonian National Museum of Natural History, and the University of Utah. Dinosaur National Monument itself was established in 1915.
Some of the newly discovered fossils are already on public display. They can be viewed at the Quarry Exhibit Hall, famously known as the “Wall of Bones,” as well as at the Utah Field House museum. The Quarry Exhibit Hall, the park’s most popular attraction, is situated atop the original Carnegie quarry, offering visitors a remarkable view of about 1,500 dinosaur fossils still embedded in the rock face.
Following the successful excavation and paleontological assessment, construction crews have now completed the parking lot and road improvement project. This enhancement included the installation of new concrete and asphalt, along with accessibility upgrades in the vicinity of the exhibit hall.






