Federmesser group is an archaeological umbrella term
including the late Upper Paleolithic to Mesolithic cultures of the Northern European Plain, dating to between 14,000 and 12,800 years ago (the late Magdalenian). It is closely related to the Tjongerian culture, as both have been suggested
It includes the Tjongerian, , Tarnowian and Witowian cultures, spanning the area of Belgium, the Netherlands, northern France, northern Germany and Poland.
It is closely related to the adjacient Bromme culture to the north, the
Creswellian to the west, and the Azilian to the south.
The name is derived from the characteristic small backed flint blades, in German termed Federmesser ("quill knife").
It is succeeded by the Ahrensburg culture after 12,800 BP.