The World Around Us

Cast of the skeleton of one of the largest dinosaurs, Tyrannosaurus Rex.

A cast of the skeleton of one of the largest dinosaurs, Tyrannosaurus Rex. Original from the late Cretaceous, one a group of animals which disappeared from the geological record with many others at the Cretaceous/Triassic (K/T) boundary.

Credit: Photo: Quadell. Smithsonian National Museum of Natural History, Washington DC.