Silurian tarphycerid Discoceras (Cephalopoda, Nautiloidea): systematics, embryonic development and paleoecology
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F18%3A00000001" target="_blank" >RIV/00025798:_____/18:00000001 - isvavai.cz</a>
Alternative codes found
RIV/00023272:_____/18:10133999
Result on the web
<a href="http://dx.doi.org/10.1017/jpa.2017.122" target="_blank" >http://dx.doi.org/10.1017/jpa.2017.122</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1017/jpa.2017.122" target="_blank" >10.1017/jpa.2017.122</a>
Alternative languages
Result language
angličtina
Original language name
Silurian tarphycerid Discoceras (Cephalopoda, Nautiloidea): systematics, embryonic development and paleoecology
Original language description
Tarphycerids were diverse and abundant in Ordovician marine faunas. Beginning at the Late Ordovician extinction, the diversity of tarphycerids declined throughout the Silurian, until their extinction in the latest Silurian. Two genera survived the Late Ordovician extinction: Trocholites Conrad, 1838 (from which Ophioceras Barrande, 1865 probably diverged) and Discoceras Barrande, 1867 (= Graftonoceras Foerste, 1925). Discoceras graftonense (Meek and Worthen, 1870), so far known from the US, China, and Australia, is recorded from the Silurian of Bohemia and Gotland. Discoceras stridsbergi n. sp., D. lindstroemi n. sp., and D. sp. indet. from the Wenlock of Gotland and D. amissus (Barrande, 1865) from the Llandovery of Bohemia are all endemic species probably derived from D. graftonense. The distribution of D. graftonense and the origin of four species of Discoceras in the latest Sheinwoodian and early Homerian represent the last diversification and dispersion of the Tarphycerida. No tarphycerid species originated after the mid-Homerian extinction (Mulde and Lundgreni events). Silurian Discoceras retained the morphology and habitats of their Ordovician ancestors. The hatching time and autecology of juveniles has remained unclear. Evidence from the material studied suggests that juveniles were planktonic in habit possessing a minute curved shell with few phragmocone chambers. Discoceras lindstroemi is exceptional owing to its heteromorphic planispiral shell with coiling that changed during ontogeny resulting in a changing aperture orientation and decreased maneuverability.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
<a href="/en/project/GA14-16124S" target="_blank" >GA14-16124S: Refinement of lower Silurian chronostratigraphy: proposal of new GSSPs of the Aeronian and Homerian stages</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Paleontology
ISSN
0022-3360
e-ISSN
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Volume of the periodical
92
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
20
Pages from-to
412-431
UT code for WoS article
000431786600007
EID of the result in the Scopus database
2-s2.0-85045893764