tyrannosaurus vs giganotosaurus

The Giganotosaurus and Tyrannosaurus (T. roma vs atalanta Rex) lived millions of years apart and in different areas The long-skulled Giganotosaurus, native to South America, lived during the Mesozoic Era (97 million years ago), while the massive, heavy-headed T Rex, native to North America, lived during the Maastrichtian age of the upper Cretaceous Period (67