inhumation jar:
By the end of the first season, more bones and numerous teeth had been uncovered from at least six burials of three types: primary burials, where the location is the original burial spot; secondary burials, a common form of burial rite often associated with megaliths; and, finally, inhumation jars, which are buried ceramic vessels containing bones.This variety adds to the complexity of the site and offers researchers the opportunity to consider questions they had been able to examine before: … [“Letter from Laos“, by Karen Coates, Archaeology (January/February 2017, offline only – typos mine)]