Tyrannosaurus rex lived closer to the release of the Apple QuickTake 200 digital camera than it did to Stegosaurus.
though they lived about 85-90 million years apart, Tyrannosaurus and Stegosaurus were both widespread in western North America, and geographically overlapped in Utah and Colorado at a minimum. Potentially, the area of overlap might have extended as far north as the border with Canada, and as far south as Arizona and New Mexico.
They would've loved sat nav
"it didn't just live, it got it on" - Marc Bolan