Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/55818
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dc.contributor.authorBicknell, Russell D Cen
dc.contributor.authorolmes, James D Hen
dc.contributor.authorGarcía-Bellido, Diego Cen
dc.contributor.authorPaterson, John Ren
dc.date.accessioned2023-08-23T04:15:37Z-
dc.date.available2023-08-23T04:15:37Z-
dc.date.issued2023-04-
dc.identifier.citationGeological Magazine, 160(4), p. 803-812en
dc.identifier.issn1469-5081en
dc.identifier.issn0016-7568en
dc.identifier.urihttps://hdl.handle.net/1959.11/55818-
dc.description.abstract<p>Malformed trilobite specimens present important insight into understanding how this extinct arthropod group recovered from developmental or moulting malfunctions, pathologies, and injuries. Previously documented examples of malformed trilobite specimens are often considered in isolation, with few studies reporting on multiple malformations in the same species. Here we report malformed specimens of the ellipsocephaloid trilobite <i>Estaingia bilobata</i> from the Emu Bay Shale <i>Konservat-Lagerstätte</i> (Cambrian <i>Series 2, Stage 4</i>) on Kangaroo Island, South Australia. Ten malformed specimens exhibiting injuries, pathologies, and a range of teratologies are documented. Furthermore, five examples of mangled exoskeletons are presented, indicative of predation on <i>E. bilobata</i>. Considering the position of malformed and normal specimens of E. bilobata in bivariate space, we demonstrate that the majority of malformed specimens cluster among the larger individuals. Such specimens may exemplify larger forms successfully escaping predation attempts, but could equally represent individuals exhibiting old injuries that were made during earlier (smaller) growth stages that have healed through subsequent moulting events. The available evidence from the Emu Bay Shale suggests that this small, extremely abundant trilobite likely played an important role in the structure of the local ecosystem, occupying a low trophic level and being preyed upon by multiple durophagous arthropods. Furthermore, the scarcity of malformed <i>E. bilobata</i> specimens demonstrates how rarely injuries, developmental malfunctions, and pathological infestations occurred within the species.</p>en
dc.languageenen
dc.publisherCambridge University Pressen
dc.relation.ispartofGeological Magazineen
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleMalformed individuals of the trilobite Estaingia bilobata from the Cambrian Emu Bay Shale and their palaeobiological implicationsen
dc.typeJournal Articleen
dc.identifier.doi10.1017/S0016756822001261en
dcterms.accessRightsUNE Greenen
local.contributor.firstnameRussell D Cen
local.contributor.firstnameJames D Hen
local.contributor.firstnameDiego Cen
local.contributor.firstnameJohn Ren
local.relation.isfundedbyARCen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailrbickne2@une.edu.auen
local.profile.emailjpater20@une.edu.auen
local.output.categoryC1en
local.grant.numberLP0774959en
local.grant.numberFT120100770en
local.grant.numberFT130101329en
local.grant.numberDP200102005en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeUnited Kingdomen
local.format.startpage803en
local.format.endpage812en
local.peerreviewedYesen
local.identifier.volume160en
local.identifier.issue4en
local.access.fulltextYesen
local.contributor.lastnameBicknellen
local.contributor.lastnameolmesen
local.contributor.lastnameGarcía-Bellidoen
local.contributor.lastnamePatersonen
dc.identifier.staffune-id:rbickne2en
dc.identifier.staffune-id:jpater20en
local.profile.orcid0000-0001-8541-9035en
local.profile.orcid0000-0003-2947-3912en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/55818en
local.date.onlineversion2023-02-08-
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleMalformed individuals of the trilobite Estaingia bilobata from the Cambrian Emu Bay Shale and their palaeobiological implicationsen
local.relation.fundingsourcenoteNational Geographic Society Research & Exploration grant (8991-11), a University of New England Postdoctoral Fellowship (to RDCB), a Karl Hirsch Memorial Grant (to RDCB), and a Royal Society of South Australia Research Grant (to RDCB).en
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.relation.grantdescriptionARC/LP0774959en
local.search.authorBicknell, Russell D Cen
local.search.authorolmes, James D Hen
local.search.authorGarcía-Bellido, Diego Cen
local.search.authorPaterson, John Ren
local.open.fileurlhttps://rune.une.edu.au/web/retrieve/4d6a18bf-2f6f-427b-8f7f-47dd1c7a09f5en
local.uneassociationYesen
local.atsiresearchNoen
local.sensitive.culturalNoen
local.year.available2023en
local.year.published2023en
local.fileurl.openhttps://rune.une.edu.au/web/retrieve/4d6a18bf-2f6f-427b-8f7f-47dd1c7a09f5en
local.fileurl.openpublishedhttps://rune.une.edu.au/web/retrieve/4d6a18bf-2f6f-427b-8f7f-47dd1c7a09f5en
local.subject.for2020370506 Palaeontology (incl. palynology)en
local.subject.for2020310405 Evolutionary ecologyen
local.subject.seo2020280107 Expanding knowledge in the earth sciencesen
local.subject.seo2020280102 Expanding knowledge in the biological sciencesen
local.profile.affiliationtypeUNE Affiliationen
local.profile.affiliationtypeExternal Affiliationen
local.profile.affiliationtypeExternal Affiliationen
local.profile.affiliationtypeUNE Affiliationen
Appears in Collections:Journal Article
School of Environmental and Rural Science
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