LAUSR

ABSTRACT During the last decade, field work carried out in the lower Eocene deposits of the Àger Basin (southern Pyrenean basins, northeast Spain) has allowed the publication of new early primate material, including the first identification of plesiadapiform remains in Spain (Arcius ilerdensis from Masia de l'Hereuet) and the description of two new species of adapiforms: Agerinia smithorum from Casa Retjo-1 and Agerinia marandati from Masia de l'Hereuet. However, the fossil material recovered is still scarce and fragmentary. For this reason, during the last few years prospecting has been carried out in order to find new localities with primate remains. This paper describes the results of these campaigns, reporting four new lower Eocene primate localities, in which some previously unknown elements have been recovered. More specifically, the locality of Cabana del Llúcio-1 has yielded the first I1, I2, and P1 for the genus Agerinia and the first M1 of the species A. smithorum. Moreover, a fragment of calcaneus from this site provides further information about the morphology of this bone in A. smithorum. The material from Cabana del Llúcio-1 displays some intermediate traits between A. smithorum from Casa Retjo-1 and A. marandati from Masia de l'Hereuet. These transitional features are consistent with the stratigraphic position of Cabana del Llúcio and support the previously proposed anagenetic lineage Agerinia smithorum–A. marandati–A. roselli.