{"refrec":{"BRefID":223646,"RR":"<b>Bless, M.J.M.; Streel, M.; Becker, G.</b> (1987). Distribution and paleoenvironment of Devonian to Permian ostracode assemblages in Belgium with reference to some late Famennian to Permian marine nearshore to brackish-water assemblages dated by miospores. <i>Ann. Soc. géol. Belg. (1968) 110(2)</i>: 347-362","BEntID":215369,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Ann. Soc. Géol. Belg. (1968) 110(2)</i>: 347-362","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Bless, M.J.M.; Streel, M.; Becker, G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Bless, M.J.M. <i>et al.</i>","Englishabstract":"The Devonian to Permian ostracode assemblages in Belgium may be subdivided in six major groups characterizing non-marine through «brackish» and shallow marine into deep marine shelf and «basin» environment. A broad-brush review of their stratigraphical distribution reveals that mixed marine faunas are the most widely extended in the Devonian and Carboniferous. Following the Caledonian orogeny there are tendencies towards «brackish-water» (oligohaline?) assemblages during the Lower Devonian. But since the Givetian also open marine shelf associations are found and even Entomozoans and Thuringian-type ostracodes (indicative for «deep shelf» to «basin») in the Upper Frasnian and basal Upper Famennian. This succession suggests a transgressive trend for the overall depositional environment, reaching its acme in the Late Devonian. The subsequent regressive tendency starts in the late Famennian (Fa2c) and Dinantian with the frequent occurrence of mixed marine assemblages which alternate in time and space with open marine shelf faunas. The culmination of this overall regression in Westphalian times is marked by the successive appearance of «brackish- water» and non-marine ostracode assemblages followed by the disappearance of, respectively, the mixed marine faunas (base Westphalian C) and «brackish-water» ostracodes (Upper Westphalian C). The isolated occurrence of a «brackish-water» ostracode in the red beds of the Thuringian reflects a short- lived marine incursion during that period.Some examples of shallow marine nearshore («mixed marine» and «brackish-water») assemblages from the Upper Famennian to Permian are shown, which have been dated by miospores.","AbstractOtherLang":"Les assemblages d'ostracodes dévoniens à permiens en Belgique peuvent être subdivisés en six groupes majeurs caractérisant des environnements non marins, saumâtres, marins peu profonds et de bassins. Une revue à grands traits de leur distribution stratigraphique montre que des faunes marines mixtes sont le plus largement répandues au Dévonien et au Carbonifère. A la suite de l'orogène calédonienne, on constate des tendances vers des assemblages d'«eaux saumâtres» (oligohalins ?) pendant le Dévonien inférieur. Mais à partir du Givétien on trouve aussi des associations de plateforme ouverte sur la mer et même des entomozoaires et des ostracodes de type Thuringien (indicatifs de «plateforme profonde» et de «bassin») dans le Frasnien supérieur et la base du Famennien supérieur. Cette succession suggère une tendance transgressive pour l'ensemble de l'environnement sédimentaire, atteignant son acmé au Dévonien supérieur. La tendance régressive qui suit commence au Famennien tardif (Fa2c) et au Dinantien avec l'apparition fréquente d'assemblages marins mixtes qui alternent dans le temps et dans l'espace avec des faunes de plateforme ouverte sur la mer. Cette régression généralisée qui culmine au Westphalien est marquée par l'apparition successive d'assemblages d'ostracodes d'«eaux saumâtres» et non marins suivie par la disparition, respectivement, des faunes marines mixtes (à la base du Westphalien C) et des ostracodes d'«eaux saumâtres» (au Westphalien C supérieur). L'apparition isolée d'un ostracode d'«eaux saumâtres» dans les couches rouges du Thuringien reflète l'existence d'une brève incursion marine pendant cette période.Quelques exemples d'assemblages littoraux marins de mer peu profonde («marin mixte» et «eaux saumâtres»), datés par miospores du Famennien supérieur au Permien, sont montrés.","BibLvlCode":"AS","StandardTitle":"Distribution and paleoenvironment of Devonian to Permian ostracode assemblages in Belgium with reference to some late Famennian to Permian marine nearshore to brackish-water assemblages dated by miospores","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-22 01:31:44.587534","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1987,"MonPub":null,"DateUpdate":"2014-09-11","DateCreate":"2013-03-19","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":223646,"PubliDate":1987,"Pagination":"347-362","XtraPublOfAnaID":null,"ISBN":null,"Volume":"110","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45503,"SerRR":"Annales de la Société géologique de Belgique. 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