The bone mining implements participate, with all the types of artifacts from neolithic settelements, enclosures, graves, in a global analysis. It sseks to define, using redundancies and the specificities of every structure considered, the invariable caracters - belonging to the technical, economic and cultural systems - and separate them from the variable carcters - provided by chronological, regional functional or social factors. The results lead to isolate two chronological complexes: one, in the Late Neolithic, well-defined by technic and organic elements, and spatially dynamic; the other, in the Middle Neolithic — less easuly defined in view of our present knowledge — is caracteried by a different functioning mode partially based on cultral habits.