{"refrec":{"BRefID":231697,"RR":"<b>Van Roy, P.; Tetlie, O.E.</b> (2006). A spinose appendage fragment of a problematic arthropod from the Early Ordovician of Morocco. <i>Acta Palaeontol. Pol. 51(2)</i>: 239-246","BEntID":223409,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Acta Palaeontol. Pol. 51(2)</i>: 239-246","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Van Roy, P.; Tetlie, O.E.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Van Roy, P.; Tetlie, O.E.","Englishabstract":"A highly spinose fragment of a possibly raptorial appendage from the Arenig (Early Ordovician) of the Upper Fezouata Formation north of Zagora, southeastern Morocco is described as the arthropod Pseudoangustidontus duplospineus gen. et sp. nov. The single fragmentary specimen displays a unique morphology, carrying at least 39 pairs of spines (i.e., 78 spines) of very regularly alternating lengths. Pseudoangustidontus gen. nov. shows some similarities to a number of spinose arthropod appendages and appendage parts, most notably to the spine-bearing podomeres of the third prosomal appendage of megalograptid eurypterids and the problematic and incompletely known genus Angustidon tits. However, megalograptids and Angustidontus both have a lower spine count, while the latter also carries only a single row of spines. Because no known arthropod displays a morphology closely comparable to that of Pseudoangustidontus gen. nov., the affinities of the new fossil within Arthropoda remain uncertain.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"A spinose appendage fragment of a problematic arthropod from the Early Ordovician of Morocco","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Arthropoda; raptorial appendage; Arenig; Ordovician; Morocco</td>","OtherDescriptors":null,"Notes":null,"AnaPub":2006,"MonPub":null,"DateUpdate":"2015-10-27","DateCreate":"2013-12-01","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000238716300004","VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":231697,"PubliDate":2006,"Pagination":"239-246","XtraPublOfAnaID":null,"ISBN":null,"Volume":"51","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42022,"SerRR":"Acta Palaeontologica Polonica. Polska Akademia Nauk. Instytut Paleobiologii: Warszawa.  ISSN 0567-7920; e-ISSN 1732-2421","StandardTitleSer":"Acta Palaeontologica Polonica","ISSN":"0567-7920","AbbrevSer":"Acta Palaeontol. Pol.","StandardTitleMon":null,"StartPage":239,"Pages":8,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Van Roy","Firstname":null,"Initials":"P.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":223409,"AutID":168904,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":"0000-0001-5330-8402","PersID":10830,"InsID":null},{"AutName":"Tetlie","Firstname":null,"Initials":"O.E.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":223409,"AutID":168948,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":278751,"LibID":36,"BRefID":231697,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"278751","RFID":null,"PaidValue":null,"Medium":"Server","Description":"VLIZ Open Access","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Open access","URL":null,"ClassifID":53,"Classification":"Open access","ReqLink":null,"ClassifTypID":1,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":null,"InternalReq":0,"LoggedInReq":0,"Disclaimer":null,"DutchDisclaimer":null,"FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Polska Akademia Nauk. Instytut Paleobiologii","City":"Warszawa"}],"MONpubls":null,"pictures":[],"thestermsPath":[{"ThesaurusTerm":"Ordovician, Lower","ThestID":169381,"Acronym":"ASFA","ThesTermPath":"Geological time > Phanerozoic > Paleozoic > Palaeozoic > Ordovician > Ordovician, Lower"},{"ThesaurusTerm":"Morocco","ThestID":186127,"Acronym":"ASFA_GEOT","ThesTermPath":"Morocco"}],"thestermsASFA":[{"ThesaurusTerm":"Morocco"},{"ThesaurusTerm":"Ordovician, Lower"}],"taxtermsASFA":[{"TaxTerm":"Arthropoda"}],"geotermsASFA":[{"GeoTerm":"Morocco"}],"collections":[{"Collection":"OMA - Open Marien Archief","ShortName":"OMA"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"222":{"SpName":"BMB - Belgische Mariene Bibliografie","SpColID":222,"ParSpColID":null,"TopParID":null,"ShortName":"BMB","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"BMB"},"729":{"SpName":"Marine Paleontology","SpColID":729,"ParSpColID":396,"TopParID":396,"ShortName":"marpal","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":396,"SpColPath":"vliz:biblio/marpal"},"221":{"SpName":"OMA - Open Marien Archief","SpColID":221,"ParSpColID":null,"TopParID":null,"ShortName":"OMA","URLLocation":null,"LibID":36,"OpenRepoFlag":1,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OMA"},"396":{"SpName":"VLIZ Bibliographies","SpColID":396,"ParSpColID":null,"TopParID":null,"ShortName":"vliz:biblio","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"vliz:biblio"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":223409,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":223409,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":null,"thesterms":[{"ThesaurusTerm":"Morocco","ThestID":186127,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Ordovician, Lower","ThestID":169381,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxterms":[{"TaxTerm":"Arthropoda [Arthropods]","AphiaID":1065,"TaxtID":15632}],"geoterms":[{"GeoTerm":"Morocco","GeoObjectID":2221,"GeotID":4414}],"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":[{"ThesaurusTerm":"Morocco","DutchTerm":null,"ThestID":186127,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Ordovician, Lower","DutchTerm":"Ordovicium, Onder","ThestID":169381,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxtermsFRIS":[{"TaxTerm":"Arthropoda","DutchTerm":"Geleedpotigen","AphiaID":1065,"TaxtID":15632}],"geotermsFRIS":[{"GeoTerm":"Morocco","DutchTerm":null}],"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Lyssens, Liesbeth, L.","newSesDate":{"date":"2013-12-01 19:11:33.760000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2015-10-27 08:07:35.900000","timezone_type":3,"timezone":"Europe/Brussels"}}}