5 trends tracked about this subject — the full history, oldest to newest below.
Paleontologists have identified the first known trackway of an adult Tyrannosaurus rex, discovered in the badlands of North Dakota.
Researchers have discovered the first known adult Tyrannosaurus rex trackway, providing a rare glimpse into the movement of the prehistoric predator.
Paleontologists have uncovered the first-ever adult Tyrannosaurus rex trackway in the North Dakota badlands.
Paleontologists have uncovered the world's first known adult Tyrannosaurus rex trackway, revealing the dinosaur's walking pace from 66.5 million years ago.
A rare T. rex fossil nicknamed Gus has sold at auction for a record-breaking $50.1 million.