About: Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observations     Goto   Sponge   NotDistinct   Permalink

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Description
  • Je prezentován přehled předpokládaných pozicí exuviace u českých ordovických dalmanitoidních a akastoidních trilobitů. Pět hlavních pozicí je popsáno, ale některé jejich kombinace jsou také rozšířeny. Variabilita předpokládaných mechanismů exuviace je překvapivě vysoká, zejména u střednoordovických druhů. Všechny anebo téměř všechny pozice se mohou vyskytovat u jednoho druhu. U pokročilých zástupců převládá pouze několik způsobů exuviace. Přesto, výskyt hlavních způsobů exuviace je považován za omezený morfologicky, nikoli vzájemnou fylogenetickou příbuzností studovaných skupin trilobitů. Funkcionalita lícního švu během ontogeneze je diskutována, zejména ve vztahu k silurským zástupcům. (cs)
  • A review of the supposed moulting positions of the Bohemian Ordovician dalmanitoid and acastoid trilobites is presented. Five main moulting positions are described, but some combinations of these are also widespread. The variability of the supposed moulting mechanisms is surprisingly high, especially in Middle Ordovician taxa. All and/or almost all moulting positions may occur together even within a single species. In advanced representatives, only a few of the described mechanisms prevail. Nevertheless, the occurrence of the moulting positions in the Bohemian Ordovician dalmanitoid and acastoid trilobites is considered to be constrained by the overall body morphology, rather than the result of phylogenetical relations. Functionality of the facial suture in these groups during the ontogeny and phylogeny is discussed, especially in relation to the Silurian representatives.
  • A review of the supposed moulting positions of the Bohemian Ordovician dalmanitoid and acastoid trilobites is presented. Five main moulting positions are described, but some combinations of these are also widespread. The variability of the supposed moulting mechanisms is surprisingly high, especially in Middle Ordovician taxa. All and/or almost all moulting positions may occur together even within a single species. In advanced representatives, only a few of the described mechanisms prevail. Nevertheless, the occurrence of the moulting positions in the Bohemian Ordovician dalmanitoid and acastoid trilobites is considered to be constrained by the overall body morphology, rather than the result of phylogenetical relations. Functionality of the facial suture in these groups during the ontogeny and phylogeny is discussed, especially in relation to the Silurian representatives. (en)
Title
  • Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observations
  • Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observations (en)
  • Exuviace ordovických dalmanitoidních a akastoidních trilobitů pražské pánve. Předběžná pozorování. (cs)
skos:prefLabel
  • Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observations
  • Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observations (en)
  • Exuviace ordovických dalmanitoidních a akastoidních trilobitů pražské pánve. Předběžná pozorování. (cs)
skos:notation
  • RIV/00025798:_____/05:00001008!RIV07-GA0-00025798
http://linked.open.../vavai/riv/strany
  • 373-383
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GP205/04/P026)
http://linked.open...iv/cisloPeriodika
  • 4
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 531286
http://linked.open...ai/riv/idVysledku
  • RIV/00025798:_____/05:00001008
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Dalmanitacea, Acastacea, Trilobita, moulting, Ordovician, Silurian (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • ES - Španělské království
http://linked.open...ontrolniKodProRIV
  • [25E1DEE110BE]
http://linked.open...i/riv/nazevZdroje
  • Geologica Acta
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 3
http://linked.open...iv/tvurceVysledku
  • Budil, Petr
  • Bruthansová, Jana
issn
  • 1695-6133
number of pages
is http://linked.open...avai/riv/vysledek of
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