Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Soft-tissue evidence for homeothermy and crypsis in a Jurassic ichthyosaur
Lund University, Sweden.
RISE - Research Institutes of Sweden, Biovetenskap och material, Kemi och material.ORCID-id: 0000-0002-2696-7215
University of Göttingen, Germany.
North Carolina State University, USA.
Vise andre og tillknytning
2018 (engelsk)Inngår i: Nature, ISSN 0028-0836, E-ISSN 1476-4687, Vol. 564, nr 7736, s. 359-365Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Ichthyosaurs are extinct marine reptiles that display a notable external similarity to modern toothed whales. Here we show that this resemblance is more than skin deep. We apply a multidisciplinary experimental approach to characterize the cellular and molecular composition of integumental tissues in an exceptionally preserved specimen of the Early Jurassic ichthyosaur Stenopterygius. Our analyses recovered still-flexible remnants of the original scaleless skin, which comprises morphologically distinct epidermal and dermal layers. These are underlain by insulating blubber that would have augmented streamlining, buoyancy and homeothermy. Additionally, we identify endogenous proteinaceous and lipid constituents, together with keratinocytes and branched melanophores that contain eumelanin pigment. Distributional variation of melanophores across the body suggests countershading, possibly enhanced by physiological adjustments of colour to enable photoprotection, concealment and/or thermoregulation. Convergence of ichthyosaurs with extant marine amniotes thus extends to the ultrastructural and molecular levels, reflecting the omnipresent constraints of their shared adaptation to pelagic life.

sted, utgiver, år, opplag, sider
Nature Publishing Group , 2018. Vol. 564, nr 7736, s. 359-365
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-37275DOI: 10.1038/s41586-018-0775-xScopus ID: 2-s2.0-85058887475OAI: oai:DiVA.org:ri-37275DiVA, id: diva2:1280294
Merknad

Funding details: North Carolina State University, NCSU, ECCS-1542015; Funding details: Vetenskapsrådet; Funding details: EAR-1344198; Funding details: Allianz Industrie Forschung, AiF; Funding details: Knut och Alice Wallenbergs Stiftelse; Funding details: North Carolina State University, NCSU; .

Tilgjengelig fra: 2019-01-18 Laget: 2019-01-18 Sist oppdatert: 2023-06-05bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Person

Sjövall, Peter

Søk i DiVA

Av forfatter/redaktør
Sjövall, Peter
Av organisasjonen
I samme tidsskrift
Nature

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 26 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
v. 2.41.0