Trilobites: New Clues to How the Biggest Dinosaurs Got So Big A fossil found in Argentina that is more than 200 million years old suggests the most giant of dinosaurs existed earlier than paleontologists believed. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Bao Bao the Panda Leaves the Beltway Behind to Breed in ChinaNasa scientists discover three planets which could support ALIEN lifeCommercial space travel WITHIN THREE YEARS on flights to launch from BRITAINA Sunken Treasure Will Appear in New York Despite Its Controversial Excavation'OVERDUE' California set for CATASTROPHIC floods as experts warn of 200-year phenomenonZimbabwe’s Rulers Use a Monument’s Walls to Build a Legacy