So forest creature evolution is undocumentable? Or does this unfortunate accident of nature only happen to chimps?
The incompleteness of data sets is only a problem for evolution because practically anything is a disproof of evolution. When I misuse a word it's disproof of evolution. That I'm not tallhappy is . . . Never mind!
Also, hillsides, once they are formed, can do nothing but erode. We basically know there were dinosaurs in the Appalachians; they were all over the place around them and there was nothing to keep them out.
But the youngest sediments you can find are Permian and not many that young. Even if a mountain is growing from tectonic forces, that only means that it's being pushed up from below faster than it's wearing away from above.