The Giganotosaurus looks very similar to the T-rex.  The Giganotosaurus looks very similar to the T-rex. Both were dreaded hunters had very short arms walked on two legs and had a large skull. However the Giganotosaurus lived much earlier and was at home in North America whereas the Tyrannosaurus rex lived in South America.  The Giganotosaurus looks very similar to the T-rex. Both were dreaded hunters had very short arms walked on two legs and had a large skull. However the Giganotosaurus lived much earlier and was at home in North America whereas the Tyrannosaurus rex lived in South America.
 
Dimensions 8.268X4.331X6.693 Inch (W X D X H)