Gigantosaurus

Giganotosaurus One of the newest additions to the world of dinosaurs arrived with a media splash in 1995 when paleontologist Rodolfo Coria of the Carmel Funs Museum in Argentina announced that he had just excavating announced an enormous dinosaur in his South American country. This bones of Giganotosaurus were discovered by the auto mechanic, who enjoyed searching for fossils in his spare time. Because Giganotosaurus may have been somewhat larger than T-rex, paleontologists often compare the two dinosaurs, attempting to determine which was the biggest, baldest prehistoric predator. Giganotosaurus weighed up to eight tons, so if it could have wrestled with T-rex, which emerged some 30 millions years later, Giganotosaurus likely would have emerged the victor. 

The remains of 75-feet long plant eating dinosaurs were found next to the Giganotosaurus fossils in Argentina, strongly suggesting that such large animals were easy pray for the jumbo carnivore. Its six foot skull and enormous jaws could probably grasp the necks of herbivorous victims, severing arteries. Its three fingered forelimbs might have then pushed injured targets to the ground for the final kill. Giganotosaurus possessed strong legs probably used for running overshot distances. The sturdy tail provided extra support and balance. Researchers Such small arms animals are often considered, but broken bones do not prevent them from running. Analysis their bones healed quickly, allowing them to fall over, run and fall again time after time. Excavations near where Giganotosaurus was found have unearthed plant eating dinosaur, such as Rebbachisaurus along with crocodiles, all of which lived at the same time periods in Africa. Coria and other researchers theorize South America and Africa were still connected 100 million years ago, Which could explain the mirror ecosystems. The connation may even indicate dinosaurs first evolved in the Southern Hemisphere.