First adult Tyrannosaurus rex trackway discovered in North Dakota badlands
Four connected footprints in the North Dakota badlands make up the first known trackway left by a full-grown Tyrannosaurus rex, according to a study published September 10, 2026. Kent Hups, a high school teacher, found it. The trackway spans 23 feet. "Bones tell us an enormous amount about these animals, but footprints capture a moment of behavior," said Dr. Tyler Lyson of the Denver Museum of Nature & Science. Spacing between the prints indicates the dinosaur walked between 3.5 and 4.5 miles per hour, despite weighing over seven tons.
The trackway gives paleontologists rare evidence of how a full-grown T. rex actually moved across the landscape.
Source: First-ever adult Tyrannosaurus rex trackway discovered in North Dakota badlands (cbsnews.com).
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