Nom du corpus

Corpus Systématique Animale

Titre du document

Thriving at high hydrostatic pressure: the example of ammonoids (extinct cephalopods)

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Éditeur
IOP
Langue(s) du document
Anglais
Type de document
Article, research-article
Nom du fichier dans la ressource
Mollusques_v2b_00064
Auteur(s)
  • Fabio Vittorio De Blasio
Affiliation(s)
  • Department of Geosciences, University of Oslo, Box 1047 Blindern, 0316 Oslo, Norway
Résumé

Ammonoids are a group of extinct mollusks belonging to the same class of the living genus Nautilus (cephalopoda). In both Nautili and ammonoids, the (usually planospiral) shell is divided into chambers separated by septa that, during their lifetime, are filled with gas at atmospheric pressure. The intersection of septa with the external shell generates a curve called the suture line, which in living and most fossil Nautili is fairly uncomplicated. In contrast, suture lines of ancient ammonoids were gently curved and during the evolution of the group became highly complex, in some cases so extensively frilled as to be considered as fractal curves. Numerous theories have been put forward to explain the complexity of suture ammonoid lines. Calculations presented here lend support to the hypothesis that complex suture lines aided in counteracting the effect of the external water pressure. Additionally, it is suggested that complex suture lines diminished shell shrinkage caused by water pressure, and thus aided in improving buoyancy. Understanding the reason for complex sutures in ammonoids represents an important issue in paleobiology with potential applications to the problem of the resistance of hollow mechanical structures subjected to high pressure.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - physiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - ethologie animale
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Engineering ; 3 - Engineering (miscellaneous)
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Molecular Medicine
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biophysics
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biotechnology
Catégories WoS
  • 1 - science ; 2 - robotics
  • 1 - science ; 2 - materials science, biomaterials
  • 1 - science ; 2 - engineering, multidisciplinary
Identifiant ISTEX
5233604361C27B409DB883BBA0E91EC942079003
Revue

Bioinspiration & Biomimetics

Année de publication
2006
Présence de XML structuré
Oui
Version PDF
1.4
Score qualité du texte
8.195
Sous-corpus
  • Mollusques
Type de publication
Journal
ark:/67375/0T8-4LD4Z8CV-K
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