Demon?
It’s the face of a goat, a common barnyard animal.
It does appear to be an intentional “half” artifact.
Symbolism?
For what?
Biblically, demons entered into men and in one instance were exorcised into pigs.
Eyes on the prize.
During the period of Earth Mother worship in the form of the “Goddess” (4400 to 2200 BC), Mendes, the goat god, was worshipped because of the prodigious sexual capacity of the billy goat.