The progressive hunting specialization during the Upper Paleolithic is a recurring theme in the scientific literature. Despite this, we consider that it is necessary to return to the discussion of this problem for two reasons. The first one is that it is a subject that has been widely studied from a zooarchaeological perspective, but not a taphonomic one. The works that pay attention to issues such as differential transport, differential preservation, fracture patterns, brand frequencies, etc., are scarce. And, the second, that these studies have been conditioned by the limitations of the methods used in ancient excavations, such as the selection of material during field work, since only what was considered to be identifiable at that time and/or useful in terms of research was collected
The aim of this communication is, therefore, to show the results of a detailed taphonomic analysis of level B6 of the Cova Rosa site, dating from the lower Magdalenian. The choice of the site to make this approach to the problem has not been by chance. Although Cova Rosa is a site excavated in ancient times (70's), it stands out for the use of a very rigorous excavation methodology, consisting of the excavation in area, the location of the material in coordinates and the screening of the sediment in sieves of 5 , 2 and 0.4 mm. Thanks to the implementation by F. Jordá and A. Gómez of this new methodology for the time, we can minimize the bias of the archaeological material recovered in the field and thus, make a better approximation to the proposed problem.