{"refrec":{"BRefID":220129,"RR":"<b>Nolf, D.; Cahuzac, B.</b> (2009). Une remarquable association d’otolithes de poissons dans le Miocène moyen de Sos, Matilon (France, Lot-et-Garonne).A remarkable assemblage of fish otoliths from the Middle Miocene of Sos, Matilon (France, Lot-et-Garonne). <i>Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 79</i>: 191-204","BEntID":211862,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":null,"RefStringPartII":". <i>Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 79</i>: 191-204","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Nolf, D.; Cahuzac, B.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Nolf, D.; Cahuzac, B.","Englishabstract":"The Serravallian site of Sos (Matilon, base of the section) is located near to the shore of the gulf of eastern Aquitaine. The studied sediment is a near shore coquina facies with a well-preserved and diversified marine fauna, reflecting a bay environment, with some brackish influences. Otoliths of 22 teleost taxa were identified, two of them representing new species: <i>Afroscion rezeaui</i> and “genus aff. <i>Afroscion</i>” <i>carinatus</i>. The association is characterised by a strong dominance of sciaenids (83% of the total number of otoliths). Among the remaining taxa, <i>Pomadasys</i> aff. <i>incisus</i> and a <i>Gobius</i> (elongate form) account for respectively 3% and 12%; all remaining taxa are rare. Except for the Serravallian coquinas of Orthez and Sallespisse, sciaenid otoliths are very rare in all Oligo-Miocene sampling sites of Aquitaine. Sciaenids from Sos, where <i>Afroscion rezeaui</i> and <i>Sciaena irregularis</i> dominate, are different from those of Orthez and Sallespisse, dominated by <i>Umbrina pyrenaica</i>. Only <i>Argyrosomus regius</i> is common to both associations. In total, only seven species are common to the two localities, and the sparid <i>Dentex</i> aff. <i>maroccanus</i> is lacking at Sos. The two faunas seem to correspond to quite different environments. Sciaenids are quite tolerant for fresh water, and the Sos area could be near to a stream mouth at the end of the gulf. Some sciaenids are even partly freshwater fishes. At Orthez – Sallespisse, the represented sciaenids are very near shore forms, but of normal salinity: this is attested by the frequence of <i>Dentex</i> aff. <i>maroccanus</i> and several haemulids. At Mios, another rich otolith site located more to the north, otoliths essentially belong to typical marine near shore fishes, among which there are even some gadids, a family of more northern fishes; sciaenids are very rare there. Here also, environmental differences are apparently responsible for the differences among the associations.","AbstractOtherLang":"Le gisement de Sos (Matilon, base de la coupe), attribué au Serravallien, se situe dans le fond du golfe d’Aquitaine orientale; c’est un dépôt coquillier de faciès littoral, à faune marine bien préservée et diversifiée, correspondant à un milieu de baie admettant quelques influences saumâtres. Il a fourni des otolithes de 22 taxa de téléostéens dont deux, <i>Afroscion rezeaui</i> et «genus aff. <i>Afroscion» carinatus</i>, représentent des espèces nouvelles. Cette association est caractérisée par la très forte dominance des sciaenidés (83 % du total des otolithes). Pour le reste, <i>Pomadasys</i> aff. <i>incisus</i> et un <i>Gobius</i> (forme allongée) comptent pour respectivement 3 et 12%, tous les autres taxa étant beaucoup moins abondants. Sauf dans les faluns serravalliens d’Orthez et de Sallespisse, les otolithes de sciaenidés sont rarissimes dans tous les gisements de l’Oligo-Miocène d’Aquitaine. Les sciaenidés sont différents à Sos où dominent <i>Afroscion rezeaui</i> et <i>Sciaena irregularis</i>, et à Orthez et Sallespisse, où <i>Umbrina pyrenaica</i> est majoritaire ; seul <i>Argyrosomus regius</i> est commun. Globalement, seulement sept espèces sont communes aux deux gisements et le sparidé <i>Dentex</i> aff. <i>maroccanus</i> manque à Sos. Ces faunes semblent correspondre à des milieux nettement différents. Les sciaenidés étant très tolérants pour l’eau douce, la région de Sos pouvait être proche d’une zone d’embouchure de rivière en fond de golfe, certains sciaenidés pouvant même être en partie dulçaquicoles. A Orthez - Sallespisse, les sciaenidés représentés sont des formes très côtières mais de salinité normale, ce qui est aussi attesté par la fréquence du sparidé <i>Dentex</i> aff. <i>maroccanus</i> et de plusieurs haemulidés. Dans un autre gisement serravallien riche en otolithes, à Mios, les otolithes appartiennent surtout à des poissons côtiers franchement marins, incluant même quelques gadidés, poissons plus nordiques, et les sciaenidés y sont quasiment absents. Ici aussi, des différences environnementales peuvent être invoquées pour expliquer les différences entre les associations.","BibLvlCode":"AS","StandardTitle":"Une remarquable association d’otolithes de poissons dans le Miocène moyen de Sos, Matilon (France, Lot-et-Garonne).A remarkable assemblage of fish otoliths from the Middle Miocene of Sos, Matilon (France, Lot-et-Garonne)","OrigTitleLangCode":"fr","OrigTitleLangCodeExtended":"fre","OrigTitleLangID":22,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Otolithes, téléostéens, Sciaenidae, Miocène moyen, paléoenvironnements, Bassin d’Aquitaine, Otoliths, teleosts, Middle Miocene, Aquitaine Basin ","OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2015-09-04","DateCreate":"2012-11-14","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":220129,"PubliDate":2009,"Pagination":"191-204","XtraPublOfAnaID":null,"ISBN":null,"Volume":"79","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":64308,"SerRR":"Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen. 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