On the Dinosaur/Human footprints page, we present evidence that shows dinosaurs and human coexisted at the same time. To further support this contention are the following discoveries:
Mastodon Petroglyph
"TRAVERSE CITY, Mich. (AP) - They aren't certain, but underwater archeologists say they may have discovered a boulder with a prehistoric carving in Lake Michigan's Grand Traverse Bay.
The granite rock has markings that resemble a mastodon - an elephant-like creature that once inhabited parts of North America - with what could be a spear in its side, say divers who have seen it." Read full article
Stegosaur Petroglyphs
There are petrographs on rock formations, such as the one to the left, in both North and South America which depict Stegosaurs. There are even Native American legends about Mishipishu, the "Water panther", which speak of him using his "great spiked tail" as a weapon.[1]
Havasupai Canyon Depictions
In the Havasupai Canyon (near the Grand Canyon), not only was there a Stegosaur depicted, but a Tyrannosaur- depicted accurately, standing upright and partially supporting by using his tail.
Java Supai Brontosaur Pictograph
This petroglyph first came to light with the Doheney Expedition to Java Supai, and was first reported from the Peabody Muscum of American Ethnology at Harvard University.[1]
Pterodactyle Drawing in Utah
This picture was found at San Rafael Swell in Black Dragon Wash, Utah.[1]
Tianhuanao Pottery
At Tiahuanaco, pottery was found showing pictures of a Toxodon- a prehistoric animal resembling a hippopotamus which was thought to be extinct well before man appeared.
How did man know to depict dinosaurs without actually seeing them? Even if they found fossils, they wouldn't have known HOW a dinosaur would stand or act...
[1] http://www.bearfabrique.org/Dinoglyphs/dinoglyphs.html