According to the researchers, the ancestors of tyrannosaurs lived on the supercontinent Pangaea.
A group of paleontologists from the University of Edinburgh Steve Brusset and Thomas Cara said that Tyrannosaurus rex lived in the late Cretaceous period, is an invasive species came to North America from Asia at the end of the dinosaur era.
Scientists analyzed the genealogical tree of 28 species tyrannosaurids – family chiropody of dinosaurs that became extinct in the late Cretaceous period, 65 million years ago.
According to the researchers, the ancestors of tyrannosaurs lived on the supercontinent Pangaea, the breakup of which began about 200 million years ago. approximately 67 million years ago disappeared sea route, which connected North America and Asia, however, remained a land bridge between the continents. Scientists suggest that it was used by dinosaurs to migrate. In addition, paleontologists have noted that the first tyrannosaurid was a very small size: “about the horse”.
