T. rex lived around 66 to 68 million years ago during the Late Cretaceous period and was among the last non-avian dinosaurs to roam Earth before the mass extinction that ended the age of the dinosaurs ...

Historic fossil find: Researchers uncovered the first confirmed adult T. rex trackway in North Dakota, preserving four footprints from 66.5 million years ago. Walking speed revealed: Stride ...

An adult and two juvenile individuals of the dinosaur Tethyshadros insularis showing the different appearances exhibited by immature and mature specimens in the ancient environment of Villaggio del ...

Four ancient footprints have given scientists new clues about how an adult Tyrannosaurus rex moved across the ground millions of years ago. The tracks, described in the Journal of Vertebrate ...