Many of these objects have been labeled out of place artifacts or anachronisms.
These archeological discoveries are always controversial and the scientific community is extremely selective in what they accept as fact.
Petroglyphs have been discovered all over the populated world, notably in parts of Africa, Scandinavia, Siberia, southwestern North America, Northern and Western Australia, and the Iberian Peninsula.Clients seeking the experience and sustained excellence of investigative quality.With over forty two years of independent specialised experience dedicated to the investigation of art authentication in all manners, origins, genres and classifications of fine art, Freemanart continue to conduct expert fine art authentication assignments, art forgery and fakes detection programs on behalf of our private and corporate clients around the world., work solely in the field of authenticating fine art.Some of these images have a special cultural and/or religious significance for the societies that created them.The most important, but mysterious, type of petroglyph is the cupule - a non-functional cup-shaped hole created by percussion in the horizontal or vertical surface of a rock.