Dear Jacqui, It just so happens that I'm in South Dakota at the moment working with a guy called Adrien Hannus who has looked at this issue quite a bit (albeit mainly with mammoth bone). I'll turn over the rest of this response to him....... Dear Jacqui, Glad to join the communication. I have some material regarding debutage from sites with bone flaking-especially regarding mammoth bone since that is my specific focus. I will gather several of the articles together and send them back with Alan, who can then forward them on to you. I try to locate some of the articles that are in regard to smaller mammals. Hope to continue the discussion after you receive these articles. Cheers Adrien Alan Outram, University of Exeter Adrien Hannus, Augustana College, S. Dakota