These are dubbed "The Acambaro Figurines" and appear to represent dinosaurs and other extinct animals that existed before humans. Man was not supposed to have existed with the dinosaurs so who made them?
While the figures appeared to be of ancient origin, their depictions were quite controversial and began to attract attention among skeptics in the scientific community. The Acámbaro figures portrayed not only dinosaurs but also unknown animals as well as those that had long been extinct. The figures also included camels and other animals not known to the area, as well as depictions of faraway cultures.
In 1972, carbon-14 analysis was made of various figures kept at the Museum of Pennsylvania, in Philadelphia. Laboratory tests showed that the objects were 5,000 years old. Four years beforehand at Isotopes Inc. in New Jersey, thermo-luminosity tests revealed that the approximate age was around 6,000 to 1,500 years old.
The archeologist and the regional director of the Acámbaro National Museum of Archeology enlisted various authorities to testify to the authenticity of the figures, including the paleontologist at the EUA Natural History Museum, naturalist Dr. Gaylord Simpson; Ivan T. Sanderson; and attorney/criminologist Erle Gardner.