|A previously mummified individual (photo Geoff Morely via Sheffield)|
Of course, all that is ever left in damp Britain and Ireland is a skeleton in a cist grave. The researchers used microscopic analysis to examine decomposition in the early stages after death to reach their conclusion. These habits begin in the Early Bronze Age and continued to just before the Iron Age. So there is a considerable period of continuity in burial practice.
It appears that the scope of the project may expand into the Continent to determine if this was widespread (I'll guess probably so). More from the university website Sheffield UK.
This is in line with topics I've discussed before, one being a possible belief in resurrection [here].