Archeologists have just find a fossil set of bones of a great dinosaur in Argentina. His name is Dreadnoughtus schrani. "With size of a house, weight of elephants, long tail is used as weapon, Dreadnoughtus will not be scared anything."Lacovara said. It has a length 26m and weight 65 ton. Archeologists said this is a complete set of bones from the past to now. They hope they will find moving ways and development of this creature.