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dc.date.accessioned2020-05-22T18:13:27Z
dc.date.available2020-05-22T18:13:27Z
dc.date.created2020-01-28T09:18:51Z
dc.date.issued2019
dc.identifier.citationDelsett, Lene Liebe Druckenmiller, Patrick Scott Roberts, Aubrey Jane Hurum, Jørn Harald . Osteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard). Acta Palaeontologica Polonica. 2019, 64(4), 717-743
dc.identifier.urihttp://hdl.handle.net/10852/76089
dc.description.abstractPhylogenetic relationships within the important ichthyosaur family Ophthalmosauridae are not well established, and more specimens and characters, especially from the postcranial skeleton, are needed. Three ophthalmosaurid specimens from the Tithonian (Late Jurassic) of the Slottsmøya Member Lagerstätte on Spitsbergen, Svalbard, are described. Two of the specimens are new and are referred to Keilhauia sp. and Ophthalmosauridae indet. respectively, whereas the third specimen consists of previously undescribed basicranial elements from the holotype of Cryopterygius kristiansenae. The species was recently synonymized with the Russian Undorosaurus gorodischensis, but despite many similarities, we conclude that there are too many differences, for example in the shape of the stapedial head and the proximal head of the humerus; and too little overlap between specimens, to warrant synonymy on species level. A phylogenetic analysis of Ophthalmosauridae is conducted, including all Slottsmøya Member specimens and new characters. The two proposed ophthalmosaurid clades, Ophthalmosaurinae and Platypterygiinae, are retrieved under some circumstances, but with little support. The synonymy of three taxa from the Slottsmøya Member Lagerstätte with Arthropterygius is not supported by the present evidence.
dc.languageEN
dc.publisherInstytut Paleobiologii
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleOsteology and phylogeny of Late Jurassic ichthyosaurs from the Slottsmøya Member Lagerstätte (Spitsbergen, Svalbard)
dc.typeJournal article
dc.creator.authorDelsett, Lene Liebe
dc.creator.authorDruckenmiller, Patrick Scott
dc.creator.authorRoberts, Aubrey Jane
dc.creator.authorHurum, Jørn Harald
cristin.unitcode185,28,8,3
cristin.unitnameMineralogisk forskningsgruppe
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1783687
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Acta Palaeontologica Polonica&rft.volume=64&rft.spage=717&rft.date=2019
dc.identifier.jtitleActa Palaeontologica Polonica
dc.identifier.volume64
dc.identifier.issue4
dc.identifier.startpage717
dc.identifier.endpage743
dc.identifier.doihttps://doi.org/10.4202/app.00571.2018
dc.identifier.urnURN:NBN:no-79227
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn0567-7920
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/76089/1/delsett_Osteology%2Band%2Bphylogeny%2Bof%2BLate%2BJurassic%2Bichthyosaurs_app005712018.pdf
dc.type.versionPublishedVersion


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