A new look at the ventral nerve centre of <it>Sagitta</it>: implications for the phylogenetic position of Chaetognatha (arrow worms) and the evolution of the bilaterian nervous system

<p>Abstract</p> <p>Background</p> <p>The Chaetognatha (arrow worms) are a group of marine carnivores whose phylogenetic relationships are still vigorously debated. Molecular studies have as yet failed to come up with a stable hypothesis on their phylogenetic position. I...

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Bibliographic Details
Main Authors: Müller Carsten HG, Harzsch Steffen
Format: Article
Language:English
Published: BMC 2007-05-01
Series:Frontiers in Zoology
Online Access:http://www.frontiersinzoology.com/content/4/1/14