{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T12:45:08Z","timestamp":1790685908336,"version":"4.1.0"},"reference-count":79,"publisher":"The Royal Society","issue":"2027","license":[{"start":{"date-parts":[[2024,7,24]],"date-time":"2024-07-24T00:00:00Z","timestamp":1721779200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/royalsociety.org\/-\/media\/journals\/author\/Licence-to-Publish-20062019-final.pdf"},{"start":{"date-parts":[[2024,7,24]],"date-time":"2024-07-24T00:00:00Z","timestamp":1721779200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/royalsociety.org\/journals\/ethics-policies\/data-sharing-mining\/"}],"funder":[{"DOI":"10.13039\/501100003579","name":"University of Toronto","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003579","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002790","name":"Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100002790","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["royalsocietypublishing.org"],"crossmark-restriction":true},"short-container-title":["Proc. R. Soc. B."],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:p>\n            The diversity of cephalic morphologies in mandibulates (myriapods and pancrustaceans) was key to their evolutionary success. A group of Cambrian bivalved arthropods called hymenocarines exhibit diagnostic mandibulate traits that illustrate this diversity, but many forms are still poorly known. These include the odaraiids, typified by\n            <jats:italic>Odaraia alata<\/jats:italic>\n            from the Burgess Shale (Wuliuan), characterized by its unique tubular carapace and rudder-like tail fan, and one of the largest Cambrian euarthropods at nearly 20 cm in length. Unfortunately, odaraiid cephalic anatomy has been largely unknown, limiting evolutionary scenarios and putting their mandibulate affinities into question. Here, we reinvestigate\n            <jats:italic>Odaraia<\/jats:italic>\n            based on new specimens from the Burgess Shale and describe exquisitely preserved mandibles with teeth and adjacent structures: a hypostome, maxillae and potential paragnaths. These structures can be homologized with those of Cambrian fuxianhuiids and extant mandibulates, and suggest that the ancestral mandibulate head could have had a limbless segment but retained its plasticity, allowing for limb re-expression within Pancrustacea. Furthermore, we show the presence of limbs with spinose endites which created a suspension-feeding structure. This discovery provides morphological evidence for suspension feeding among large Cambrian euarthropods and evinces the increasing exploitation of planktonic resources in Cambrian pelagic food webs.\n          <\/jats:p>","DOI":"10.1098\/rspb.2024.0622","type":"journal-article","created":{"date-parts":[[2024,7,23]],"date-time":"2024-07-23T23:06:33Z","timestamp":1721775993000},"update-policy":"https:\/\/doi.org\/10.1098\/crossmark-policy","source":"Crossref","is-referenced-by-count":9,"title":["The Cambrian\n            <i>Odaraia alata<\/i>\n            and the colonization of nektonic suspension-feeding niches by early mandibulates"],"prefix":"10.1098","volume":"291","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8072-6308","authenticated-orcid":true,"given":"Alejandro","family":"Izquierdo-L\u00f3pez","sequence":"first","affiliation":[{"name":"Department of Ecology and Evolutionary Biology, University of Toronto , Toronto, Ontario M5S 3B2, Canada"},{"name":"Department of Natural History, Royal Ontario Museum , Toronto, Ontario M5S 2C6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1670-5502","authenticated-orcid":true,"given":"Jean-Bernard","family":"Caron","sequence":"additional","affiliation":[{"name":"Department of Ecology and Evolutionary Biology, University of Toronto , Toronto, Ontario M5S 3B2, Canada"},{"name":"Department of Natural History, Royal Ontario Museum , Toronto, Ontario M5S 2C6, Canada"},{"name":"Department of Earth Sciences, University of Toronto , Toronto, Ontario M5S 3B1, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"175","published-online":{"date-parts":[[2024,7,24]]},"reference":[{"key":"e_1_3_8_2_2","first-page":"1","volume-title":"Crustacean issues 1: crustacean phylogeny","author":"Briggs DEG","year":"1983","unstructured":"Briggs DEG . 1983 Affinities and early evolution of the Crustacea: the evidence of the Cambrian fossils. In Crustacean issues 1: crustacean phylogeny (ed. FR Schram ), pp. 1\u201322. Rotterdam, The Netherlands: A. A. 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