**Short Excerpt:**
Excavations at Dinosaur National Monument reveal significant fossil discoveries for the first time in over a century.
Key Points
– New dinosaur fossils were uncovered during parking lot construction at Dinosaur National Monument.
– The excavation is the first at the site since 1924, focusing on a large, long-necked dinosaur similar to Diplodocus.
– Approximately 3,000 pounds of fossils and rock were extracted for study.
– The fossils are currently being cleaned and analyzed at a local museum.
– The excavation took place between mid-September and mid-October 2025.
Fossil Discovery at Dinosaur National Monument
New dinosaur fossils have been discovered at Dinosaur National Monument, marking the first excavation at the site in more than 100 years. Officials from the National Park Service (NPS) announced the findings on Friday.
Discovery Details
The fossils were uncovered in September during construction for a parking lot near the Quarry Exhibit Hall on the Utah side of the park. The project was paused immediately on September 16 when workers exposed a portion of dinosaur-bearing sandstone by removing asphalt.
According to the NPS, the fossils belong to a large, long-necked dinosaur, likely similar to Diplodocus, which is known to be common in this bonebed.
Excavation Process
From mid-September to mid-October 2025, approximately 3,000 pounds of fossils and surrounding rock were carefully extracted from the site. The fossils are currently being cleaned and studied at the Utah Field House of Natural History State Park Museum in Vernal, Utah.
Historical Context
This excavation is particularly significant as the bonebed area had not been excavated since the original digs concluded in 1924. Following the excavation, the construction project for the parking lot and road improvements continued as planned.
Related Research
Recent research indicates that dinosaur populations thrived in North America just prior to the asteroid impact that led to their mass extinction 66 million years ago. Notably, in January 2025, a nearly 70-million-year-old dinosaur fossil was discovered during construction at the Denver Museum of Nature and Science, providing further insight into the prehistoric ecosystem.
This discovery at Dinosaur National Monument not only enriches our understanding of the area’s prehistoric past but also highlights the ongoing significance of paleontological research in understanding Earth’s history.
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