First Adult T. rex Trackway Reveals 1-Meter Footprints in North Dakota
TL;DR Summary
Scientists report the first known trackway of an adult Tyrannosaurus rex from North Dakota, a 7-meter-long site with four footprints about 1 meter long dating to around 66.5 million years ago. The find provides rare behavioral data from footprints (estimated walking speed ~3.3–4.5 mph) and complements bone records. Three footprints will be moved to the Denver Museum of Nature & Science for study, highlighting how trackways can illuminate behavior and gait in large dinosaurs.
- Scientists Find First Adult T. Rex Trackway – And The Footprints Are Human-Sized ScienceAlert
- First-ever adult Tyrannosaurus rex trackway discovered in North Dakota badlands CBS News
- How an Unlikely Fossil Hunter Found a Tyrannosaurus Trail National Geographic
- Four giant three-toed prints found in 2025 near Marmarth, North Dakota turned out to be the first trackway ever attributed to an adult T. rex, and the 66.5-million-year-old sequence records a 13-foot stride — the predator was strolling at 3.5 to 4.5 mph, about the Space Daily
- Massive Footprints Reveal First Ever Adult T Rex Trackway, a 66-Million-Year-old Walk Through North Dakota Good News Network
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