The ancient romans knew several ways of giving the dead a house for eternity.
The last resting-place of a deceased had everything to do with money.
The form of burial was depending from how much one could afford.
The simplest and cheapest form of burial was a grave directly in the earth. In the case of cremation the ashes were put in urns or amphorae. By inhumation a body was laid into a hole in the ground without any protection or on a brick underground and sometimes also covered by brick. For these tombs, vertically placed amphorae were often used as an indication of the burial place and in the same time for libation.
Sometimes a row of amphorae, without a neck and foot, was used as the cover of a body, aspeccially for children.