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Animal EvolutionInterrelationships of the Living Phyla$
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Claus Nielsen

Print publication date: 2011

Print ISBN-13: 9780199606023

Published to Oxford Scholarship Online: December 2013

DOI: 10.1093/acprof:oso/9780199606023.001.0001

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AMBULACRARIA

AMBULACRARIA

Chapter:
(p.316) 57 AMBULACRARIA
Source:
Animal Evolution
Author(s):

Claus Nielsen

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199606023.003.0057

The Ambulacraria is a group in the animal kingdom that includes the echinoderms, pterobranchs, and enteropneusts. The ambulacrarians share similarities between their coelomic systems and their larvae. The pterobranchs and enteropneusts are either sister groups, or the former are an ingroup of the latter. The Hox genes bear an ‘ambulacrarian signature’.

Keywords:   echinoderms, pterobranchs, enteropneusts, Ambulacraria, Hox genes, ambulacrarians

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