First trackway of an adult T. rex discovered in North Dakota

Paleontologists found a trackway of four three-toed prints made by an adult T. rex in the Hell Creek Formation in North Dakota, dated to about 66.5 million years ago. Each print is roughly 3 feet long and 23–31 inches wide, with the animal moving at 1.5–2 m/s with a stride of about 4 meters.

• Four adult T. rex prints found in the Hell Creek Formation
• Each footprint about 3 feet long and 23–31 inches wide
• The dinosaur moved at 1.5–2 m/s with a stride of about 4 meters
• Tracks date to about 66.5 million years ago, 500,000 years before the asteroid impact