Researchers identify what they describe as the first known trackway made by an adult Tyrannosaurus rex, found in North Dakota’s badlands. The findings come from fossil tracks preserved in southwestern North Dakota.
Both reports say the trackway represents a full-grown T. rex, a rare kind of evidence because many T. rex track finds have not been conclusively tied to adult animals. The outlets also describe the age of the site as roughly 66.5 million years, placing it near the end of the Cretaceous period. While both sources agree on the discovery’s location and significance, they frame it with slightly different wording—one emphasizes the first-ever nature of the adult trackway, while the other highlights the dating of the trackway.
The discovery adds to the body of evidence about dinosaur behavior and movement by offering an unusually clear look at how an adult T. rex likely moved across its environment.
