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Story summary
- Paleontologists uncovered the first adult Tyrannosaurus rex trackway in the Hell Creek Formation of North Dakota.
- The 66.5-million-year-old trackway consists of four three-toed footprints, each about 1 m long.
- The 13-ft stride suggests the dinosaur walked at approximately 3.5–4.5 mph.
- Teacher Kent Hups discovered the trackway, and the team published the findings on September 8 2026.
- The footprints will be recovered this fall and transferred to Denver Museum of Nature & Science.
