[dinosaur] Tyrannosaurus rex as an invasive species

[Poekilopleuron <dinosaurtom2015@seznam.cz>]

Good day!

I would like to ask, if there is any support in the fossil record for the idea that a giant theropod Tyrannosaurus rex was actually an invasive species (migrating perhaps from Eastern Asia) that "flooded" North American ecosystems at the very end of the Cretaceous? Given that the fossils of this species are found thousands of kilometres away from each other (British Columbia to Mexico), that would make sense, perhaps? Thank you for your thoughts! Tom