This is a double Burin Bec de Perroquet from the Magdalenian VI at La Madeleine with one Bec broken.
Usually so called “type-fossils” are only of limited chronological value during the Paleolithic, as extensively shown during the last 60 years. On the other hand, the Burins Noailles, Raysse, and Bec de Perroquet are examples of types, that have been recognized as valuable for special time horizons during the Upper Paleolithic. All three burin types fall within the sub-class “burin on truncation”. Of the three, the Bec de Perroquet has the most distinctive appearance but, at the same time, exhibits only minimal modification of the original blank (Demars & Laurent 1989).
The distinctiveness of a Bec de Perroquet burin lies in the selection of a large, thin flake as a blank and in the steep but non-invasive retouch around its whole edge. Interestingly Points a Cran of the late Magdalenian in S/W-France follow the same principle. In spite of the only minor shaping, the morphological distinctiveness of the Bec de Perroquet burin, as well as its temporal and geographic parameters, make it a reasonable chronological marker for the late Magdalenian of the greater Aquitaine.