| Summary: | International audience By the biometrical study of the faunal remains of Rangifer tarandus found at Combe-Grenal we show up some relevant dental size differences between the Reindeer of the layers 35 to 26 and those, more recent, of the layers 25 to 1. These differences seems to be absent on the post-craniel remains. As we showed in our thesis (Guadelli, 1987), the morphology of the pars petrosa is very distinctive but this cranial part is usually put aside by the archeozoologists. So in this text it seems interesting to us to compare the pars petrosa of the Reindeer (Rangifer tarandus) and of the Red deer (Cervus elaphus). Without giving a detailled account of morphology of this temporal part we can say as follows : 1) The cranial part of the pars petrosa of the Reindeer draw an irregular picture. 2) The medial side, very sinuous, is concave above the fossa cerebellaris and convexe in this medio-ventral part. 3) The ventral side of the pars petrosa of both species is triangular but the nervi trigemini print is more irregular in the case of Rangifer tarandus. 4) The aperture of the canalis facialis of the Reindeer is broader than the one of the Red deer. 5) The medial side of the pars petrosa of the Reindeer is concave while the one of the Red deer is straight. L'étude biométrique des restes de Renne découverts à Combe-Grenal a permis de mettre en évidence quelques différences de taille significatives au niveau dentaire entre le Renne des couches 35 à 26 et ceux des couches 25 à 1 plus récentes. De telles différences ne semblent pas se manifester sur le squelette post-crânien. Comme nous l'avions montré dans notre thèse (Guadelli, 1987) les portions pétreuses de temporal sont porteuses de nombreux renseignements mais elles sont le plus souvent ignorées par les archéozoologues. Ainsi, les caractéristiques morphologiques des portions pétreuses de temporal (rochers) de Rangifer tarandus sont décrites et comparées à celles des os homologues de Cervus elaphus.
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