There is tons of it.. you just have your fingers stuck in your ears, and your eyes slammed shut again.
Who knows, maybe there are some anti-science, Temple of Darwin fanatics who make that claim, but I have yet to see anyone produce any links...including you.
There are, on the other hand, no cave paintings that anyone has found that go back 70,000 years ~ not even in Australia ~ where the first modern humans arrived some time later than that