Microanatomy and histology of bone pathologies of extant and extinct phocid seals

dc.contributor.authorWoolley, Megan R.
dc.contributor.authorChinsamy, Anusuya
dc.contributor.authorGovender, Romala
dc.contributor.authorBester, Marthan Nieuwoudt
dc.date.accessioned2020-02-07T10:15:55Z
dc.date.issued2021-08
dc.description.abstractThis study investigates three presumed fractured phocid seal bones: An isolated metapodial and an ulna belonging to different individuals of the extinct phocid, Homiphoca capensis, from Langebaanweg and a mandible of a juvenile elephant seal (Mirounga leonina), which was included to assess the validity of the assumption that changes to bones caused by fractures are consistent across extant and extinct members of the same groups. The bones were studied using a multi-method approach, including gross morphology, microcomputed tomography (micro-CT) and histology. Micro-CT showed that the metapodial was not fractured and information drawn from other analyses suggested that the pathology was an osteosarcoma. Histology of normal and fractured regions of the mandible and ulna permitted an estimate about the fracture healing stage, and showed the bone tissue at the fracture sites to be histologically similar. A birth line found on the lateral surface of the elephant seal mandible emphasised its young age and marked the first example of a birth line in a bone of a semi-aquatic mammal. A large scope of information was obtained using this multi-method approach, which could permit insight into the life events and lifestyles of modern and extinct individuals, such as H. capensis.en_ZA
dc.description.departmentMammal Research Instituteen_ZA
dc.description.departmentZoology and Entomologyen_ZA
dc.description.embargo2020-11-12
dc.description.librarianhj2020en_ZA
dc.description.sponsorshipNRF-DST Centre of Excellence in Palaeosciences to Megan Rose Woolley, NRF African Origins Programme (AOP) Grant awarded to Prof A Chinsamy-Turan (Grant No. 117716) NRF African Origins Programme (AOP) Grant awarded to Dr R Govender (Grant No. 98834).en_ZA
dc.description.urihttps://www.tandfonline.com/loi/ghbi20en_ZA
dc.identifier.citationMegan R. Woolley, Anusuya Chinsamy, Romala Govender & Marthán N. Bester (2021): Microanatomy and histology of bone pathologies of extant and extinct phocid seals, Historical Biology 33(8):1231-1246, DOI: 10.1080/08912963.2019.1689238.en_ZA
dc.identifier.issn0891-2963 (print)
dc.identifier.issn1029-2381 (online)
dc.identifier.other10.1080/08912963.2019.1689238
dc.identifier.urihttp://hdl.handle.net/2263/73139
dc.language.isoenen_ZA
dc.publisherTaylor and Francisen_ZA
dc.rights© 2019 Informa UK Limited, trading as Taylor & Francis Group. This is an electronic version of an article published in Historical Biology, vol. 33, no. 8, pp. 1231-1246, 2021, DOI: 10.1080/08912963.2019.1689238. Historical Biology is available online at : https://www.tandfonline.com/loi/ghbi20.en_ZA
dc.subjectPalaeopathologyen_ZA
dc.subjectPathologyen_ZA
dc.subjectPhociden_ZA
dc.subjectBone histologyen_ZA
dc.subjectHomiphoca capensisen_ZA
dc.subjectOsteosarcomaen_ZA
dc.subjectElephant seal (Mirounga leonina)en_ZA
dc.titleMicroanatomy and histology of bone pathologies of extant and extinct phocid sealsen_ZA
dc.typePostprint Articleen_ZA

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