National audience"Following researches undertaken over the Neolithic era of the west from the Île-de-France since the years 1970, a new collective project was controlled by the departments of Yvelines and the Val-d'Oise between 2012 and 2014 around the study of life ways at the end of the Neolithic. This work was gathered in four broad research topics: the detection of the sites, the chronology, the habitat and saving in production, funeral practices. The present contribution draws up an inventory of fixtures of the evolution of the funeral practices in the area of the study in the light in particular of the results of the relative and absolute datings. New prospects emergent modifying appreciably the vision of the behavior of the Neolithic...