Scientists have confirmed the discovery of the first known trail of adult T rex footprints in North America. The rare trace fossils mark a major paleontological milestone, giving researchers their first direct evidence of how the apex predator physically moved through and navigated its ancient environment.

High school science teacher Kent Hups initially spotted the fossilized path within the Hell Creek Formation in southwestern North Dakota. The twenty-three-foot-long trackway preserves four consecutive three-toed impressions pressed into ancient mud about 66.5 million years ago. Researchers from the Denver Museum of Nature and Science alongside Liverpool John Moores University performed high-resolution 3D surface scanning to digitally reconstruct the trackway before excavating physical prints.

How Fast Was T Rex Moving, According To Scientists?

Scientists estimate that the seven-ton adult Tyrannosaurus rex was moving at around 3.5 to 4.5 miles per hour when it left the footprints. Analysis of its 13-foot stride suggests it was walking at roughly a brisk human pace rather than chasing prey. Scientists say the tracks also provide valuable evidence about stride mechanics and weight distribution.

Helicopters are scheduled to airlift three of the heavily weathered sandstone footprint casts to the Denver Museum of Nature and Science later this year. Museum staff will preserve the tracks and prepare public exhibits showcasing this rare moment of dinosaur behavior.

Analyzing behavioral trace fossils advances our understanding of prehistoric life. High-resolution 3D models ensure scientists worldwide can continue studying dinosaur movement patterns.