{"refrec":{"BRefID":435839,"RR":"<b>Lambert, O.; Van Boeckel, J.; Bosselaers, M.; Gijsen, B.; Van Rompaey, P.; Everaert, S.</b> (2025). A tiny dolphin (Cetacea, Odontoceti, Kentriodontidae) cranium from the Middle Miocene of the southern North Sea with a rare osteological malformation. <i>Geol. Belg. 28(1-2)</i>: 79-91. <a href=\"https://dx.doi.org/10.20341/gb.2025.009\" target=\"_blank\">https://dx.doi.org/10.20341/gb.2025.009</a>","BEntID":433669,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Geol. Belg. 28(1-2)</i>: 79-91. <a href=\"https://dx.doi.org/10.20341/gb.2025.009\" target=\"_blank\">https://dx.doi.org/10.20341/gb.2025.009</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Lambert, O.; Van Boeckel, J.; Bosselaers, M.; Gijsen, B.; Van Rompaey, P.; Everaert, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Lambert, O. <i>et al.</i>","Englishabstract":"<span lang=\"de\" dir=\"ltr\">Though the Neogene deposits of northern Belgium yielded many marine vertebrate remains, including cetaceans, the fossil record of several clades remains scarce. Among echolocating toothed whales (Odontoceti), cranial fossils of early delphinidans generally referred to the family Kentriodontidae are surprisingly rare in the Miocene units of the Antwerp area. Recently, a large construction pit excavated in the city centre of Antwerp allowed for the lithostratigraphic description of a section in the Kiel and Antwerpen members of the Berchem Formation. In addition to an elasmobranch assemblage of 13 species, a well-preserved, tiny odontocete cranium was discovered in the lower part of the Antwerpen Member (Middle Miocene, lower Langhian). Representing a young individual, this rare fossil displays strong anatomical similarities with the small kentriodontid </span><i><span lang=\"de\" dir=\"ltr\">Kentriodon pernix</span></i><span lang=\"de\" dir=\"ltr\">, originally found in upper Lower to Middle Miocene deposits of the Atlantic Coastal Plain (USA). It is referred here to </span><i><span lang=\"de\" dir=\"ltr\">Kentriodon</span></i><span lang=\"de\" dir=\"ltr\"> cf. </span><i><span lang=\"de\" dir=\"ltr\">K. pernix</span></i><span lang=\"de\" dir=\"ltr\">, contributing to the improvement of the scant fossil record of early delphinidans in the North Sea. Associated to a degree of tooth wear that is unexpected in such a young individual, highly unusual anatomical traits, especially in the orbit region, are interpreted as resulting from a malformation that occurred relatively early during cranial development.&nbsp;</span>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"A tiny dolphin (Cetacea, Odontoceti, Kentriodontidae) cranium from the Middle Miocene of the southern North Sea with a rare osteological malformation","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-10 01:33:03.559174","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"toothed whale, Langhian, Belgium, Antwerp, Berchem Formation, cranial anatomy, abnormal development","OtherDescriptors":null,"Notes":null,"AnaPub":2025,"MonPub":null,"DateUpdate":"2025-11-14","DateCreate":"2025-11-10","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1,"DOI":"10.20341/gb.2025.009"},"refs":null,"anarec":{"AnaID":435839,"PubliDate":2025,"Pagination":"79-91","XtraPublOfAnaID":null,"ISBN":null,"Volume":"28","Issue":"1-2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45707,"SerRR":"Geologica Belgica. Geologica Belgica: Brussels .  ISSN 1374-8505; e-ISSN 2034-1954","StandardTitleSer":"Geologica Belgica","ISSN":"1374-8505","AbbrevSer":"Geol. Belg.","StandardTitleMon":null,"StartPage":79,"Pages":13,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Lambert","Firstname":"Olivier","Initials":"O.","Affiliation":"O.D. Earth and History of Life, Royal Belgian Institute of Natural Sciences","Discriminator":null,"CorporateFlag":0,"BEntID":433669,"AutID":255300,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":"Koninklijk Belgisch Instituut voor Natuurwetenschappen; Operationele Directie Aarde en Geschiedenis van het Leven","ORCID":"0000-0003-0740-5791","PersID":25029,"InsID":13001},{"AutName":"Van Boeckel","Firstname":"Jeroen","Initials":"J.","Affiliation":"O.D. 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