The ancient references are global with their images being portrayed in medieval / historical manuscripts, plasters and mosaics including cave paintings and sculptures.
Below are a few more archaic and documented references to these hairy and very elusive beings. It is interesting to note that every one of these images show these beings as human like and not as apes or monsters. Seems the ancients had very little question when it came to the classification of these beings. I am not saying that there are not ancient images that portray them as apes or even monsters but they are the minority (at least within my collection).
Aristotle gives us an image and made reference to hairy children in his work of folk medicine and midwifery.
Stained glass window from the 15th century: Saint Onuphrius who lived somewhere around the 4th or 5th century. Accounts vary according to referances
The below image also comes from the same stained glass window
click the picture to see an image of the full window
The vase on the left is dated 650-675 BC
Ruan the Hairy was a sixth-century Cornish saint also known as Rumon, Rewan, Ruman, Runon .
I found these images serching ancient manuscripts held by PRINCETON
Coat-of-arms of the Grain-measurers of Ghent, on their Ceremonial Banner, dated 1568.
I wish I could show you my entire collection the time spread is amazing. The last image I offer on this page is one of my favorite finds I do hope you enjoy it along with all the others I have shared.