{"refrec":{"BRefID":231552,"RR":"<b>Jagt, J.W.M.; Felder, W.M.</b> (2003). The stratigraphic range of the index ammonite Pachydiscus neubergicus (von Hauer, 1858) in the type area of the Maastrichtian Stage. <i>Geol. Mijnb. 82(3)</i>: 261-268","BEntID":223264,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Geol. Mijnb. 82(3)</i>: 261-268","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Jagt, J.W.M.; Felder, W.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Jagt, J.W.M.; Felder, W.M.","Englishabstract":"In the extended type area of the Maastrichtian Stage (southern Limburg, the Netherlands; provinces of Limburg and Liege, Belgium; Aachen area, Germany), the pachydiscid Pachydiscus (P) neubergicus (von Hauer, 1858) ranks amongst the rarer species of Campanian-Maastrichtian ammonites. To date, just four specimens are known, which show P (P) neubergicus in this area to have been confined to the Vijlen Member (Intervals 0-6, Gulpen Formation). This would correspond to the basal sumensis Zone to the lower cimbrica Zone, or tegulatus/junior Zone, depending on placement of the Lower/Upper Maastrichtian boundary. Material available has been collected in recent years at the CBR-Lixhe (Liege, Belgium) and ENCI-Maastricht bv (Maastricht) quarries as well as from outcrop 62D-26 at Vijlenerbosch (Vijlen, the Netherlands). Records of P (P) neubergicus, the proposed index for the base of the Maastrichtian Stage, from elsewhere in Europe (northern Spain, SW France, Austria, Denmark, Bulgaria), suggest it to have been fairly long-ranging and show local first occurrences to have been diachronous.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The stratigraphic range of the index ammonite Pachydiscus neubergicus (von Hauer, 1858) in the type area of the Maastrichtian Stage","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:58:19.190595","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Maastrichtian; ammonites; stratigraphic range","OtherDescriptors":null,"Notes":null,"AnaPub":2003,"MonPub":null,"DateUpdate":"2021-02-25","DateCreate":"2013-12-01","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000186584600005","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":231552,"PubliDate":2003,"Pagination":"261-268","XtraPublOfAnaID":null,"ISBN":null,"Volume":"82","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42914,"SerRR":"Netherlands Journal of Geosciences. 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