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First T. rex Trackway Found: A Glimpse into Prehistoric Life
24 Sep
Summary
- A T. rex trackway, the first of its kind, was discovered in the Hell Creek Formation.
- The footprints provide insights into the T. rex's gait and walking speed.
- This discovery offers a rare look at prehistoric behavior from 66.5 million years ago.

A significant paleontological discovery has been made in the Hell Creek Formation, revealing the first known trackway left by a Tyrannosaurus rex. High school teacher Kent Hups stumbled upon the two footprints in July 2025, which were later confirmed and expanded upon by researchers.
These remarkable fossilized prints, measuring about 3 feet in length, offer invaluable clues about the T. rex's behavior and locomotion. The trackway suggests the dinosaur was walking at a speed of 3.5 to 4.5 miles per hour, providing direct evidence of its stride length.
The Hell Creek Formation, a rich source of Late Cretaceous dinosaur fossils, typically preserves bones rather than footprints. This discovery is therefore exceptionally rare and provides a unique 'time machine' effect, allowing scientists to study live movement from approximately 66.5 million years ago.
Further analysis of the trackway, including potential tissue and skin impressions, is planned. This groundbreaking find, published in the Journal of Vertebrate Paleontology, is anticipated to aid in the discovery of more such tracks and enhance our understanding of prehistoric ecosystems.