gorgosaurus

== English == === Etymology === From the genus name, Gorgosaurus, from Ancient Greek γοργός (gorgós, “grim, fierce, terrible”) + -saurus (suffix forming genus names of dinosaurs). === Noun === gorgosaurus (plural gorgosauruses or gorgosauri) A tyrannosaurid theropod dinosaur of the genus Gorgosaurus that lived in western North America during the Late Cretaceous Period (Campanian), between about 76.6 and 75.1 million years ago. === Further reading === Gorgosaurus on Wikipedia.Wikipedia