Cet article fait suite à une communication donnée lors de la Table-Ronde « Taphonomie : des référentiels aux ensembles fossiles », organisée par S. Costamagno, Ph. Fosse et F. Laudet à l'Université de Toulouse le Mirail les 23-25 Novembre 2005.International audienceIn this paper, we try to document butchery practices from the past. We attempt to characterize through experimental data the marks produced when dismembering using overextension of the elbow of Sheep and several bird species. For birds, the experimentation was realized with uncooked carcasses. In many cases, overextension produced break down of the olecranon fossa of the humerus, with medial wrench of the distal part. Moreover, the proximal joints of the radius and ulna are broke...