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dc.contributor.authorBrasier, Martin Den
dc.contributor.authorNorman, Daviden
dc.contributor.authorLiu, Alexanderen
dc.contributor.authorCotton, Laura Jen
dc.contributor.authorHiscocks, Jamieen
dc.contributor.authorGarwood, Russell Jen
dc.contributor.authorAntcliffe, Jonathan Ben
dc.contributor.authorWacey, Daviden
dc.date.accessioned2016-06-10T15:14:39Z
dc.date.available2016-06-10T15:14:39Z
dc.date.issued2016-10-27en
dc.identifier.issn0305-8719
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/256263
dc.description.abstractIt has become accepted in recent years that the fossil record can preserve labile tissues. We report here the highly detailed mineralization of soft tissues associated with a naturally occurring brain endocast of an iguanodontian dinosaur found in c. 133 Ma fluvial sediments of the Wealden at Bexhill, Sussex, UK. Moulding of the braincase wall and the mineral replacement of the adjacent brain tissues by phosphates and carbonates allowed the direct examination of petrified brain tissues. Scanning electron microscopy (SEM) imaging and computed tomography (CT) scanning revealed preservation of the tough membranes (meninges) that enveloped and supported the brain proper. Collagen strands of the meningeal layers were preserved in collophane. The blood vessels, also preserved in collophane, were either lined by, or infilled with, microcrystalline siderite. The meninges were preserved in the hindbrain region and exhibit structural similarities with those of living archosaurs. Greater definition of the forebrain (cerebrum) than the hindbrain (cerebellar and medullary regions) is consistent with the anatomical and implied behavioural complexity previously described in iguanodontian-grade ornithopods. However, we caution that the observed proximity of probable cortical layers to the braincase walls probably resulted from the settling of brain tissues against the roof of the braincase after inversion of the skull during decay and burial.
dc.description.sponsorshipNERC (NE/L011409/1)
dc.languageEnglishen
dc.language.isoenen
dc.publisherGeological Society of London
dc.rightsAttribution 4.0 International
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectdinosauriaen
dc.subjectiguanodontiaen
dc.subjectiguanodonen
dc.subjecthypselospinusen
dc.subjectbariliumen
dc.subjectornithopodaen
dc.subjectbrain structureen
dc.subjectmeningesen
dc.subjectvasculatureen
dc.subjectcellophaneen
dc.subjectsideriteen
dc.subjectmineralised tissuesen
dc.titleRemarkable preservation of brain tissues in an Early Cretaceous iguanodontian dinosauren
dc.typeArticle
dc.description.versionThis is the final version of the article. It first appeared from the Geological Society of London via http://dx.doi.org/10.1144/SP448.3en
prism.endingPage398
prism.publicationDate2016en
prism.publicationNameEarth System Evolution and Early Life: a Celebration of the Work of Martin Brasieren
prism.startingPage383
prism.volume448en
dc.identifier.doi10.17863/CAM.204
dcterms.dateAccepted2016-03-03en
rioxxterms.versionofrecord10.1144/SP448.3en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2016-10-27en
dc.contributor.orcidLiu, Alexander [0000-0002-3985-982X]
dc.identifier.eissn2041-4927
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idNatural Environment Research Council (NE/L011409/2)
datacite.issupplementedby.doi10.6084/m9.figshare.c.3519984en
rioxxterms.freetoread.startdate2100-01-01


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International