Were some burial spots meant for certain families?
Yes, some burial spots were meant for certain families because megaliths sometimes contained more than one skeleton. This indicated that people belonging to the same family were buried in the same place though not at the same time. The bodies of those who died later were brought into the grave through the portholes. Stone circles or boulders placed on the surface perhaps served as signposts to find the burial site, so that people could return to the same place whenever they wanted to.
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