[FreeReign]

Actually some of those paleontological findings are not as much world climate, but location. Montana wasn’t at the latitude and longitude it is now. There have been major shifts in tectonic plates.

Montana was pretty far north during the Late Cretaceous. But the continents were much smaller and thus the climate was less continental and more temperate.

[the OlLine Rebel]

You get my point, though. There have been major geographic shifts.