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dc.contributor.authorBaron, Matthewen
dc.contributor.authorNorman, Daviden
dc.contributor.authorBarrett, Paul Men
dc.date.accessioned2019-09-09T23:30:44Z
dc.date.available2019-09-09T23:30:44Z
dc.date.issued2017-03-22en
dc.identifier.issn0028-0836
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/296658
dc.description.abstractFor nearly 130 years dinosaurs have been divided into two distinct clades Ornithischia and Saurischia. Here, we present a radical new hypothesis for the phylogenetic relationships of the major dinosaurian groups, one that challenges the current consensus concerning early dinosaur evolution and highlights problematic aspects of current cladistic definitions. Our study recovers, for the first time, a sister-group relationship between Ornithischia and Theropoda (Ornithoscelida), with Sauropodomorpha + Herrerasauridae forming its monophyletic outgroup. This new tree topology requires redefinition and rediagnosis of Dinosauria and the subsidiary dinosaurian clades. In addition, it forces re-evaluations of early dinosaur cladogenesis and character evolution, suggests the independent acquisition of hypercarnivory in herrerasaurids and theropods, and offers an explanation for many of the anatomical features previously regarded as striking convergences between theropods and early ornithischians.
dc.languageEnglishen
dc.publisherNature Publishing Group
dc.rightsAll rights reserved
dc.rights.uri
dc.titleA novel hypothesis of dinosaur relationships and early dinosaur evolutionen
dc.typeArticle
prism.endingPage506
prism.publicationDate2017en
prism.publicationNameNatureen
prism.startingPage501
prism.volume543en
dc.identifier.doi10.17863/CAM.43706
dcterms.dateAccepted2017-02-10en
rioxxterms.versionofrecord10.1038/nature21700en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2017-03-22en
dc.contributor.orcidNorman, David [0000-0003-0101-428X]
dc.identifier.eissn1476-4687
rioxxterms.typeJournal Article/Reviewen
dc.identifier.urlhttp://eprints.esc.cam.ac.uk/3857/en
rioxxterms.freetoread.startdate2017-09-22


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