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Lozouet, P.: Les Conoidea de l'Oligocène supérieur (Chattien) du bassin de l'Adour (Sud-Ouest de la France). 171 species of Conoidea are recorded from the Upper Oligocene of Aquitaine basin (Adour Basin), accounting for nearly 14 % of all the gastropods that can be found there. Approximately fifty species were previously known from the same deposits. Out of these 171 species, 63 are accepted as new. 22 species could not be named and 16 species are identified as "cf.". These species are, for most of them, insufficiently preserved in order to be unequivocally identified. It should also be noted that the Conidae, which are generally poorly preserved, are insufficiently studied. Five new species from the Early Miocene (Aquitanian and Burdigalian) are also described. The Raphitomidae are the best represented with 32 species, followed by Borsoniidae (26 species), Horaiclavidae (21 species), Drilliidae (16 species), Mangeliidae (13 species), Conidae (12 species), Turridae (11 species), Pseudomelatomidae (10 species), Clathurellidae (8 species), Terebridae (8 species), Clavatulidae (6 species), Mitromorphidae (5 species), Conorbidae (1 species), Cochlespiridae (1 species), Turridae? (1 species). 24 species (14 %) are directly related to known species of the Lower Miocene of Aquitaine and only 4 species (2.5 %) are also known from the Lower Oligocene of Aquitaine. Consequently, Conoidea proved to be the richest clade in species and confirms the great originality of the Upper Oligocene mollusc faunas of the Aquitaine basin. New taxa: Asthenotoma angusta n. sp., Asthenotoma praepannus n. sp., Asthenotoma vulcani n. sp., Bathytoma lanotensis n. sp., Borsonia meridionalis n. sp., Boettgeriola denticulata n. sp., Boettgeriola granulosa n. sp., Boettgeriola protoglobosa n. sp., Drilliola estotiensis n. sp., Drilliola mammicula n. sp., Drilliola ponticensis n. sp., Drilliola subsedentaria n. sp., Microdrillia aturensis n. sp., Pleurotomoides gemmata n. sp., Pleurotomoides lapicidinae n. sp., Pleurotomoides poustagnacensis n. sp., Pleurotomoides rupina n. sp., Nitidiclavus oligocaenicus n. sp., Splendrillia laevissima n. sp., Splendrillia marconensis n. sp., Splendrillia subspinifera n. sp., Stenodrillia pseudoneuvillei n. sp., Crassispira sanctistephani n. sp., Crassispira octocrassicosta n. sp., Crassispira virodunensis n. sp., Thelecythara oligocaenica n. sp., Atoma ambiguiformis n. sp., Atoma buccinoides n. sp., Boreodrillia megacarinata n. sp., Boreodrillia orthensis n. sp., Boreodrillia paulensis n. sp., Boreodrillia pseudoaturensis n. sp., Boreodrillia pygmaea n. sp., Boreodrillia sibuzatensis n. sp., Ceritoturris littoralis n. sp., Ceritoturris philippei n. sp., Amblyacrum adrienpeyroti n. sp., Amblyacrum otites n. sp., Amblyacrum tauziedensis n. sp., Benthomangelia praegrateloupi n. sp., Petrafixia chattica n. sp., Cryptodaphne chattica n. sp., Daphnella gascognensis n. sp., Gymnobela cyrillei n. sp., Mioawateria hondelattensis n. sp., Teretia oligocaenica n. sp., Pleurotomella bezoyensis n. sp., Pleurotomella protocarinata n. sp., Pleurotomella protocostulata n. sp., Pleurotomella rappardiformis n. sp., Pseudolusitanops n. gen., Raphitoma arenosa n. sp., Raphitoma asperata n. sp., Raphitoma exasperata n. sp., Raphitoma lilliputiana n. sp., Raphitoma mediodenticulata n. sp., Raphitoma pleurotomelloides n. sp., Raphitoma scapulata n. sp., Raphitoma neoscapulata n. sp., Raphitoma suberinacea n. sp., Raphitoma subfragilis n. sp., Thetidos fossilis n. sp., Perrona secunda n. sp., Turricula sanctistephani n. sp., Gemmula antedenticulata n. sp., Gemmula brevirostris n. sp., Gemmula funiculosa n. sp., Gemmula obesa n. sp., Turris semipustulosa n. sp., Hastula sublaevissima n. sp., Hastula oseudobasteroti n. sp. Pacaud, J.-M.: Remarques taxonomiques et nomenclaturales sur les mollusques gastropodes du Paléogène de France et description d'espèces nouvelles. Partie 1: Vetigastropoda et Neritimorpha. Taxonomic and nomenclatural changes on gastro.
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