Photo: http://zooarchaeology.ning.com/photo/0944a-1?context=user Thank you for your help. I thought it was a Cyprinid dorsal fin ray too but I have never seen species with small spines on both sides. Carp and barbel only have one side spines. Cyprinids are a big problem ... Déborah FRONTIN Doctorante Paris I Panthéon-Sorbonne Maison de l'Archéologie et de l'Ethnologie CNRS UMR 7041 - Equipe "Archéologies environnementales" 21 allée de l'Université - 92023 NANTERRE Cedex - FRANCE e.mail : [log in to unmask]