(better late than never, sorry for the delayed reply Moth)
er yes, it would fit in with the other coves.
I do find it difficult trying to sort out the relative chronology of all the sites at Avebury but as I understand it the coves are the earliest stones. And older than the banks and ditches? But not earlier than the origins of the Sanctuary or the Beckhampton longbarrow. Hmm I should find a run-down of the dates.
Pete G - is there anything about Avebury this man does not know? I think not.