○ Gigantosaurus was one of the largest meat-eating dinosaurs, measuring up to 40 feet in length and weighing around 8 tons, making it larger than Tyrannosaurus rex.
○ They lived approximately 99 to 97 million years ago, in what is now South America.
○ As a carnivore, they likely preyed upon large herbivorous dinosaurs like the long-necked sauropods, as well as other smaller dinosaurs.
○ The first fossils were discovered in the late 20th century in Argentina. Its name, meaning "giant southern lizard," reflects its massive size and geographical origin.