While I agree the comet part sounds like bs, I'm not as certain about dinosaurs. All my life I've been told that dinosaurs lived about 231-243 million years ago. I was also told that the modern form of man (homo sapiens) have only been around for 300,000 years. and humans of some sort have existed for 6 million years. If this is true, then how did modern man know enough of what a dinosaur looked like that they were able to draw them on cave walls? Even more fascinating was, There is a petroglyph in Natural Bridges National Monument that bears a startling resemblance to a dinosaur, specifically a Brontosaurus, with a long tail and neck, small head and all. (see pic)
Then there was the recent discovery in Kuwait. Here's what was said...
This amazing work of art combined with dinosaur bones discovered on the spot, bring an all new perspective to the theories concerning the disappearance of the dinosaurs about 65 million years ago. It now seems plausible that humans could actually have coexisted with these incredible creatures until a few hundred thousand years ago.
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