The recent discovery (2009) and excavation of the open-air site of Ormesson (Seine-et-Marne – France) revealed an interesting  sequence of Gravettian – Solutrean – Châtelperronian – Middle Palaeolithic, unique for Northern France. The latest publication in Quaternary International focusses on level 4, the discoidal Mousterian. Preservation at the site is exceptional with animal bones, remnants…