Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Revised Vertebral Count in the "Longest-Necked Vertebrate'' Elasmosaurus platyurus Cope 1868, and Clarification of the Cervical-Dorsal Transition in Plesiosauria
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Palaeobiology.
2013 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 8, no 8, e70877- p.Article in journal (Refereed) Published
Abstract [en]

Elasmosaurid plesiosaurians are renowned for their immensely long necks, and indeed, possessed the highest number of cervical vertebrae for any known vertebrate. Historically, the largest count has been attributed to the iconic Elasmosaurus platyurus from the Late Cretaceous of Kansas, but estimates for the total neck series in this taxon have varied between published reports. Accurately determining the number of vertebral centra vis-a-vis the maximum length of the neck in plesiosaurians has significant implications for phylogenetic character designations, as well as the inconsistent terminology applied to some osteological structures. With these issues in mind, we reassessed the holotype of E. platyurus as a model for standardizing the debated cervical-dorsal transition in plesiosaurians, and during this procedure, documented a "lost'' cervical centrum. Our revision also advocates retention of the term "pectorals'' to describe the usually three or more distinctive vertebrae close to the cranial margin of the forelimb girdle that bear a functional rib facet transected by the neurocentral suture, and thus conjointly formed by both the parapophysis on the centrum body and diapophysis from the neural arch (irrespective of rib length). This morphology is unambiguously distinguishable from standard cervicals, in which the functional rib facet is borne exclusively on the centrum, and dorsals in which the rib articulation is situated above the neurocentral suture and functionally borne only by the transverse process of the neural arch. Given these easily distinguishable definitions, the maximum number of neck vertebrae preserved in E. platyurus is 72; this is only three vertebrae shorter than the recently described Albertonectes, which together with E. platyurus constitute the "longest necked'' animals ever to have lived.

Place, publisher, year, edition, pages
2013. Vol. 8, no 8, e70877- p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-209877DOI: 10.1371/journal.pone.0070877ISI: 000324465000146OAI: oai:DiVA.org:uu-209877DiVA: diva2:659854
Available from: 2013-10-28 Created: 2013-10-28 Last updated: 2017-12-06Bibliographically approved

Open Access in DiVA

fulltext(594 kB)184 downloads
File information
File name FULLTEXT01.pdfFile size 594 kBChecksum SHA-512
d6537dd862175c5eda5d4bae6de0f95acdb1aaa481cb8b4df7f245581741736d8cfb6f0fbd03b7cc7ef26d55df8601cfefa8bde13f1656df176996b018fe6e8c
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Kear, Benjamin P.
By organisation
Palaeobiology
In the same journal
PLoS ONE
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 184 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 362 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf