Check your mail.

I thought Richard Bradley was heading in the Mesolithic direction in his book at the start but then didn't. I think it's plausibile.

The carvings on this orthostat seem to have been very wide circles compared to the tighter, skinnier passage tomb art. I'm checking my other pics from Loughcrew but most of the carvings conform to this lighter 'font' with tighter, more precise lines.