The long barrows of the Cerny cemetery of Passy (Yonne) yielded 30 individuals. They were divided in two between the north area “La Sablonnière” and the south area “Richebourg”. Since the excavations between 1982 and 1985, the age and sex distribution of this population had remained unknown. This paper shows that, on a global scale, men and women are equally represented. However, a part of the youngest children and some adults were excluded from this cemetery. Unexpectedly, this selective rule was only followed at “Richebourg”. The age was not among the discriminating factors for the burials at “La Sablonnière”. A selective pattern correlated to a biological kinship according to the two areas is also suspected. These divergences lead to rethink the unity of “the” cemetery of Passy. Its two areas seem to be an palethnological fact.