A footprint (replica shown)[1] carved into the rock on Dunadd, in Argyll, is linked to the crowning of the Scots kings of Dál Riata.

A petrosomatoglyph is a supposed image of parts of a human or animal body in rock. They occur all over the world, often functioning as an important form of symbolism, used in religious and secular ceremonies, such as the crowning of kings. Some are regarded as artefacts linked to saints or culture heroes.

The word comes from the Greek πέτρα (petra, "stone"), σῶμα (soma "body"), and γλύφειν (glyphein, "to carve"). Feet are the most common; however, other features including knees, elbows, hands, heads and fingers are also found.

Stylised representations of parts of the body are often open to dispute and are therefore on the fringes of acceptability as identifiable petrosomatoglyphs. Natural objects, such as rock crystals and rock formations which look like petrosomatoglyphs, whole animals, plants, etc., are collectively called "mimetoliths".