Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observation

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Main Author: P. Budil
Format: Artículo científico
Language:en
Published: Universitat de Barcelona 2005
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author P. Budil
author_facet P. Budil
contents Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observation P. Budil J. Bruthansová Ciencias de la Tierra Moulting Acastoidea Ordovician Barrandian Dalmanitoidea A review of the supposed moulting positions of the Bohemian Ordovician dalmanitoid and acastoid trilobites ispresented. 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 Ordoviciantaxa. 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 moultingpositions in the Bohemian Ordovician dalmanitoid and acastoid trilobites is considered to be constrained by theoverall body morphology, rather than the result of phylogenetical relations. Functionality of the facial suture inthese groups during the ontogeny and phylogeny is discussed. 2005 artículo científico 1695-6133 https://www.redalyc.org/articulo.oa?id=50530406 en http://www.redalyc.org/revista.oa?id=505 Geologica Acta: an international earth science journal application/pdf Universitat de Barcelona Geologica Acta: an international earth science journal (España) Num.4 Vol.3
format Artículo científico
id redalyc_50530406
institution Redalyc
language en
publishDate 2005
publisher Universitat de Barcelona
spellingShingle Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observation
P. Budil
Ciencias de la Tierra
Moulting
Acastoidea
Ordovician
Barrandian
Dalmanitoidea
Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observation P. Budil J. Bruthansová Ciencias de la Tierra Moulting Acastoidea Ordovician Barrandian Dalmanitoidea A review of the supposed moulting positions of the Bohemian Ordovician dalmanitoid and acastoid trilobites ispresented. 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 Ordoviciantaxa. 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 moultingpositions in the Bohemian Ordovician dalmanitoid and acastoid trilobites is considered to be constrained by theoverall body morphology, rather than the result of phylogenetical relations. Functionality of the facial suture inthese groups during the ontogeny and phylogeny is discussed. 2005 artículo científico 1695-6133 https://www.redalyc.org/articulo.oa?id=50530406 en http://www.redalyc.org/revista.oa?id=505 Geologica Acta: an international earth science journal application/pdf Universitat de Barcelona Geologica Acta: an international earth science journal (España) Num.4 Vol.3
title Moulting in Ordovician dalmanitoid and acastoid trilobites of the Prague Basin. Preliminary observation
topic Ciencias de la Tierra
Moulting
Acastoidea
Ordovician
Barrandian
Dalmanitoidea
url https://www.redalyc.org/articulo.oa?id=50530406