World's Largest Dinosaur
The "World's Largest Dinosaur" is the name of a model "Tyrannosaurus rex" located in the town of Drumheller in the Canadian province of Alberta. Built of fiberglass and steel, has a height of and a length of , considerably larger than the largest known specimens of the actual dinosaur which reached up to in length, and was up to tall at the hips. The dinosaur was built while former mayor Phil Bryant was in his term.
Evolution of dinosaurs
The earliest confirmed dinosaur fossils include saurischian ('lizard-hipped') dinosaurs "Nyasasaurus" 243 Ma, "Saturnalia" 225-232 Ma, "Herrerasaurus" 220-230 Ma, "Staurikosaurus" possibly 225-230 Ma, "Eoraptor" 220-230 Ma and "Alwalkeria" 220-230 Ma. "Saturnalia" may be a basal saurischian or a prosauropod. The others are basal saurischians.