Study of faunal series resulting from recent excavations in two caves in North Atlantic Morocco (Grotte
à Hominidés - GH - and Grotte des Rhinocéros - GDR - at Thomas I and Oulad Hamida 1 quarries,
Casablanca) has yielded new evidence concerning the gathering and processing of ungulates carcasses
during the Middle Pleistocene in this part of North Africa. Preliminary taphonomic analysis of the
macrofauna indicates that the carcasses were mainly introduced in the caves by carnivores. Additionally,
marks generated by porcupines also occur. Dimensions and morphologies of tooth-marks and coprolites
suggest that carnivores of different sizes (mainly middle-sized canids, hyenids and felids), as well as
porcupines, used the cave. Cut-marks on the bones are absent at GH and scarce at GDR, despite their
association with lithic artefacts and human fossils. This raises the question of the relationship between
hominins and other competitors in these caves. The recurring question is to determine the modalities of
niche partitioning by the various predators and/or carrion-eaters as well as the mode of introduction of
artefacts and human remains