First Adult T. Rex Trackway Discovered in N.D.
Scientists documented the first adult Tyrannosaurus rex trackway in the Hell Creek Formation of North Dakota, a 23-foot sequence of four tridactyl footprints dating to about 66.5 million years ago, analyzed with 3D scans to reveal gait and behavior. Found in 2025 on federal land near Marmarth, the tracks suggest a leisurely pace of roughly 3.5 to 4.5 mph as researchers plan further excavations and 3D reproductions.
Science · 36 sources · Sep 14, 2026Read itThe journal
Open the journal →The conversation starts in the journal — be the first to post.
About Denver Museum of Nature and Science
The Denver Museum of Nature & Science is a municipal natural history and science museum in Denver, Colorado. It is a resource for informal science education in the Rocky Mountain region. A variety of exhibitions, programs, and activities help museum visitors learn about the natural history of Colorado, Earth, and the universe. The 716,000-square-foot (66,519 m2) building houses more than one million objects in its collections including natural history and anthropological materials, as well as archival and library resources.
Everything about Denver Museum of Nature and Science →- Country
- United States
- Headquarters
- Denver
- Inception
- 1900
- Website
- https://www.dmns.org/