Fossil associations from the middle and upper Eocene strata of the Pamplona Basin and surrounding areas (Navarre, western Pyrenees)

Fossil associations from the middle and upper Eocene (Bartonian and Priabonian) sedimentary succession of the Pamplona Basin are described. This succession was accumulated in the western part of the South Pyrenean peripheral foreland basin and extends from deep-marine turbiditic (Ezkaba Sandstone Formation) to deltaic (Pamplona Marl, Ardanatz Sandstone and Ilundain Marl formations) and marginal marine deposits (Gendulain Formation). The micropalaeontological content is high. It is dominated by foraminifera, and common ostracods and other microfossils are also present. The fossil ichnoasssemblages include at least 23 ichnogenera and 28 ichnospecies indicative of Nereites, Cruziana, Glossifungites and ?Scoyenia-Mermia ichnofacies. Body macrofossils of 78 taxa corresponding to macroforaminifera, sponges, corals, bryozoans, brachiopods, annelids, molluscs, arthropods, echinoderms and vertebrates have been identified. Both the number of ichnotaxa and of species (e. g. bryozoans, molluscs and condrichthyans) may be considerably higher. Body fossil assemblages are comparable to those from the Eocene of the Nord Pyrenean area (Basque Coast), and also to those from the Eocene of the west-central and eastern part of South Pyrenean area (Aragon and Catalonia). At the European scale, the molluscs assemblages seem endemic from the Pyrenean area, although several Tethyan (Italy and Alps) and Northern elements (Paris basin and Normandy) have been recorded. Palaeontological data of studied sedimentary units fit well with the shallowing process that throughout the middle and late Eocene occurs in the area, according to the sedimentological and stratigraphical data.

Le “brigand lusitanien” reconsidéré. Analyse du problème de la terre chez Appien

L’étude du “brigandage lusitanien” a donné lieu à une importante activité de recherche depuis la fin du XIXe siècle. Pour autant, et malgré une inflexion progressive de l’historiographie moderne vers une approche plus nuancée de l’origine du phénomène, le problème de la terre reste encore aujourd’hui au centre des préoccupations de nombre d’historiens et archéologiques. À partir d’une discussion serrée des principaux passages de Tite-Live, Diodore et surtout Appien, relatifs à la relation que d’aucuns ont voulu établir entre manque et/ou pauvreté de la terre et développement du brigandage chez les Lusitaniens, il est proposé une critique de l’interprétation socio-économique.