Reminds me that I was talking to you about the Pool Farm Cist. Found this the other day:

'A remarkable slab decorated with seven foot carvings, ten cup-marks and a horned device ... formed part of a sealed stone cist containing two cremations dating to the first quarter of the 2nd millenium BC. The motives from Pool Farm are largely without parallel in Britain, and most similar to Scandanavian examples (eg Bornholm), though it has been suggested that the destroyed Calderstones passage grave (Liverpool) is a comparison.'
(from here http://www.somerset.gov.uk/somerset/cultureheritage/heritage/swarf/themes/neoeba/index.cfm)