Cruciform passage grave
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Cruciform passage graves describe a complex example of prehistoric passage grave found in Ireland, west Wales and Orkney and built during the later Neolithic, from around 3500 BC and later.
They are distinguished by a long passage leading to a central chamber with a corbelled roof. From this, burial chambers extend in three directions, giving the overall impression in plan of a cross shape layout. Some examples have further sub-chambers leading off the three original chambers. The network of chambers is covered by a cairn and revetted with a kerb.
A common trait is megalithic art carved into the stones of the chambers' walls and roofs. Abstract designs were favoured, especially spirals and zig-zags.
Examples are Newgrange in Ireland, Maes Howe in Orkney and Barclodiad y Gawres in Anglesey.