{"refrec":{"BRefID":220041,"RR":"<b>Casier, J.-G.</b> (1992). Description et étude des ostracodes de deux tranchées traversant la limite historique Frasnien-Famennien dans la localité type. <i>Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 62</i>: 109-119","BEntID":211774,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":null,"RefStringPartII":". <i>Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 62</i>: 109-119","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Casier, J.-G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Casier, J.-G.","Englishabstract":"Study of two new trenches dug at Senzeilles shows the sudden change from a dysaerobic to a well oxygenated environment at the boundary between shales with \"Matagne\" aspect and transition shales. This event located 3.5 m below the base of Senzeilles shales seems the same as the event observed at the top of the Kellwasserkalk in Kellerwald and Harz. The dysaerobic community contents numerous ostracods belonging to Entomozoacea and Cypridinacea super-families. The faunal renewal begins with the appearance of a very abundant benthonic ostracod fauna and crinoïds, 2.5 m below the first appearance of the brachiopod macrofauna on which GOSSELET fixed last century the Frasnian-Famennian boundary. The mode of life of the Entomozoacea is discussed in answer to GROOS-UFFENORFE & SCHINDLER's recent paper (1990).","AbstractOtherLang":"L'étude de deux tranchées réalisées récemment à Senzeilles montre le passage d'un environnement dysaérobique à un milieu mieux oxygéné au niveau de la limite schistes à aspect \"Matagne\" - schistes de transition. Cet événement, situé 3,5 m sous la base des schistes de Senzeilles, paraît correspondre à celui observé au sommet du Kellwasserkalk dans le Kellerwald et dans le Harz. La communauté caractérisant la dysaérobiose contient des Ostracodes appartenant aux super-familles Cypridinacea et Entomozoacea. Le renouvellement faunique se marque par l'apparition d'une faune d'Ostracodes benthiques très abondante et par de nombreux Crinoïdes; ils précèdent de 2,5 m l'apparition de la macrofaune à Brachiopodes qui a permis à GOSSELET, au siècle dernier, de fixer la limite Frasnien - Famennien. Le mode de vie des Entomozoacea fait l'objet d'une discussion suite à un article récent de GROOS-UFFENORDE & SCHINDLER (1990).","BibLvlCode":"AS","StandardTitle":"Description et étude des ostracodes de deux tranchées traversant la limite historique Frasnien-Famennien dans la localité type","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":"Frasnian-Famennian boundary, extinction, ostracods, paleoecology, dysaerobic facies, Limite Frasnien-Famennien, Ostracodes, paléoécologie, dysaérobiose ","OtherDescriptors":null,"Notes":null,"AnaPub":1992,"MonPub":null,"DateUpdate":"2015-09-03","DateCreate":"2012-11-13","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":220041,"PubliDate":1992,"Pagination":"109-119","XtraPublOfAnaID":null,"ISBN":null,"Volume":"62","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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