{"refrec":{"BRefID":249731,"RR":"<b>Taylor, P.D.; Voigt, E</b> (1999). An unusually large Cyclostome Bryozoan (<i>Pennipora anomalopora</i>) from the Upper Cretaceous of Maastricht. <i>Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 69</i>: 165-171","BEntID":241430,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":null,"RefStringPartII":". <i>Bull. Kon. Belg. Inst. Natuurwet. Aardwet. = Bull. - Inst. r. sci. nat. Belg., Sci. Terre 69</i>: 165-171","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Taylor, P.D.; Voigt, E","OrigTitleTranslFlag":0,"Authorstringtrunc":"Taylor, P.D.; Voigt, E","Englishabstract":"<i>Pennipora anomalopora</i> (UBAGHS, 1858) is an erect branching species of cyclostome bryozoan (Family Cerioporidae BUSK) found rarely and only in the Maastrichtian of the Maastricht region. A large and spectacular colony was discovered in 1994 by Fred Michon in the Meerssen Mbr of the Maastricht Fm in the ENCI NV Quarry. This may be the largest Mesozoic cyclostome colony ever found. The branches have well-developed monticules, and sectioned branches reveal the characteristic difference in orientation between autozooecia and kenozooecia, as well as numerous brood chambers which are partially subdivided by internal septa-like walls. Dark growth bands observed within the endozone of a longitudinally sectioned branch are an average of 2.9 mm apart. These bands appear to coincide with levels of brood chambers in the exozone. If larval brooding occurred annually then a distal branch growth rate of about 3 mm per year can be inferred, indicating that the colony lived for more than 35 years.","AbstractOtherLang":"<i>Pennipora anomalopora</i> (UBAGHS, 1858), un bryozoaire cyclostome (Famille Cerioporidae BUSK) branchu et dressé, est une espèce rare qui ne se rencontre que dans le Maastrichtien de la région de Maastricht. Une spectaculaire colonie de grande taille fut découverte en 1994 par Fred Michon à la carrière ENCI NV, dans le Membre de Meerssen de la Formation de Maastricht. Elle est peut être la plus grande colonie de cyclostome mésozoïque jamais trouvée. Les branches présentent des monticules bien développés et les branches sectionnées montrent la différence d'orientation caractéristique entre les autozoécies et les cénozoécies ainsi que de nombreuses chambres d'incubation partiellement divisées par des cloisons internes semblables à des septa. Des bandes de croissance sombres, observées dans l'endozone d'une branche coupée longitudinalement, sont distantes d'environ 2,9 mm. Ces bandes semblent coïncider avec les niveaux de chambres d'incubation de l'exozone. Si l'incubation larvaire avait lieu annuellement, on peut déduire une croissance de la partie distale de la branche d'environ 3 mm par an, ce qui indiquerait que la colonie a vécu plus de 35 ans.","BibLvlCode":"AS","StandardTitle":"An unusually large Cyclostome Bryozoan (<i>Pennipora anomalopora</i>) from the Upper Cretaceous of Maastricht","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":"Bryozoa - Cretaceous - Netherlands - growth rate, Crétacé - Pays-Bas - Taux de croissance","OtherDescriptors":null,"Notes":null,"AnaPub":1999,"MonPub":null,"DateUpdate":"2015-09-08","DateCreate":"2015-09-08","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":249731,"PubliDate":1999,"Pagination":"165-171","XtraPublOfAnaID":null,"ISBN":null,"Volume":"69","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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