Google searches for "high altitude dinosaur" mostly find complaints that scientists assume they exist but mountains are peak erosion sites so there are no fossi

Google searches for "high altitude dinosaur" mostly find complaints that scientists assume they exist but mountains are peak erosion sites so there are no fossils or other evidence. Theoretically geologists could predict high altitude plains or areas of generally high ground, probably, and it would be interesting to see reported fossils in those known lower PP-O2 areas. Fossilized vegetation evidence in the area of dino fossils could indicate higher altitude for both. Sure, intuitively most dinos would thrive in hot swampy jungles. But there's so much delicious higher altitude land covered in pine trees waiting to be eaten... The cold argument is serious, but plenty of animals migrate, so given great forest of edible food, something should have evolved to eat its way uphill in the summer ...