Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
Connecting stripes: An organic skeletal structure in Sepia from Red Sea
Swedish Museum of Natural History, Department of Paleobiology. (palaeozoology)
Swedish Museum of Natural History, Department of Paleobiology. (palaeozoology)
2012 (English)In: Geobios, ISSN 0016-6995, E-ISSN 1777-5728, Vol. 45, 13-17 p.Article in journal (Refereed) Published
Abstract [en]

The skeletal structure, herein termed ‘‘connecting stripes’’, is demonstrated in dried cuttlebones of Sepia (Acanthosepion) savignyi de Blainville from the Gulf of Aqaba, Red Sea, Eilat, Israel. This structure consists of segmented chitinous strip-like sheets covering the outside opening to the cuttlebone chambers. Scanning electron microscope images demonstrate that the connecting stripes are tightly attached to the neighbouring septa along the septal edges and do not continue from one chamber to the next. When broken, they leave band-like remnants along the attachment sites. The connecting stripes consist of fibrous, organic, possibly mainly chitinous, laminas. Chemical analysis using energy dispersive spectrometry shows that the connecting stripes contain C, O, Na, K but lack Ca and P. The connecting stripes show perceptible, usually barely visible micropores with diameter of ca. 0.1 mm; distances between the micropores are 0.2 to 0.3 mm. The connecting stripes in Sepia are similar to connecting rings in bactritoids and ammonoids in having a segmented structure and a non-mineralized, organic composition. The microporosity of connecting stripes observed in Sepia has been also recorded in three genera of Mesozoic ammonoids. The connecting stripes may serve as a transport route of the cameral liquid in and out of the chambers and are considered to be a homologue of the connecting rings in cephalopods with a fully developed siphonal tube.

Place, publisher, year, edition, pages
2012. Vol. 45, 13-17 p.
Keyword [en]
Coleoidea, Sepia, cuttlebone, siphonal tube, connecting rings, connecting stripes
National Category
Natural Sciences
Research subject
Diversity of life
Identifiers
URN: urn:nbn:se:nrm:diva-1363DOI: 10.1016/j.geobios.2011.11.008OAI: oai:DiVA.org:nrm-1363DiVA: diva2:862534
Projects
shell morphology and ultrastructure as a key to coleoid cephalopod phylogeny
Available from: 2015-10-22 Created: 2015-10-22 Last updated: 2015-11-26Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Department of Paleobiology
In the same journal
Geobios
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 11 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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