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?An endocochleate experiment? in the Silurian straight-shelled cephalopod Sphooceras

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F12%3A00000062" target="_blank" >RIV/00025798:_____/12:00000062 - isvavai.cz</a>

  • Alternative codes found

    RIV/00023272:_____/12:#0001975

  • Result on the web

    <a href="http://dx.doi.org/10.3140/bull.geosci.1335" target="_blank" >http://dx.doi.org/10.3140/bull.geosci.1335</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3140/bull.geosci.1335" target="_blank" >10.3140/bull.geosci.1335</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    ?An endocochleate experiment? in the Silurian straight-shelled cephalopod Sphooceras

  • Original language description

    Sphooceras truncatum (Barrande, 1860), a Silurian straight-shelled cephalopod with a short finger-shaped shell, is one of a few cephalopods in which natural truncation of the apical part of the phragmocone from the rest of the conch is confirmed. Periodic natural removal of the apical part of the shell (4 to 5 phragmocone chambers) preceded formation of a terminal callus and a calcareous plug closing the septal foramen. The apical callus probably originated by fusion of the truncation septum with episeptal deposits. These structures temporarily formed the new apex on which two additional calcareous layers had been secreted. A unique specimen preserves a colour pattern in the convex apical region, which proves that the shell in Sphooceras was temporarily completely surrounded by mantle extending from the body chamber, i.e. the cephalopod was at least temporarily endocochleate. The co-occurrence of different growth stages of S. truncatum together with one type of short juvenile orthocera

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    DB - Geology and mineralogy

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2012

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Bulletin of Geosciences

  • ISSN

    1214-1119

  • e-ISSN

  • Volume of the periodical

    87

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    47

  • Pages from-to

    767-813

  • UT code for WoS article

    000311214100012

  • EID of the result in the Scopus database