http://www.youtube.com/watch?v=NPO6h8M6DI4
The blurb reads:
Dr. Javier Cabrera was professor of medicine and head of his department at the University of Lima. He has retired from that position and is presently the Cultural Anthropologist for Ica, Peru. In the early 1930's, his father found many of these ceremonial burial stones in area's numerous Inca tombs. Dr. Cabrera has continued his father's research and has collected over 1100 of them. Approximately one third depict the pornographic culture of the Incas, graphically portrayed in the artifacts of that period. Some picture their idolatry, other represent amazing accomplishments, such as successful brain surgery confirmed by scarred skulls which demonstrate healed recovery. Almost one third of the stones depict specific types of dinosaurs, like those seen below, as well as Triceratops, Stegosaurus and Pterosaurs.
