Jump to ContentJump to Main Navigation
Animal EvolutionInterrelationships of the Living Phyla$
Users without a subscription are not able to see the full content.
Animal Evolution: Interrelationships of the Living Phyla

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

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 16 April 2021

GNATHIFERA

GNATHIFERA

Chapter:
(p.180) 31 GNATHIFERA
Source:
Animal Evolution
Author(s):

Claus Nielsen

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199606023.003.0031

The Gnathifera is a clade that originally comprised Gnathostomulida, Rotifera (known as Syndermata), and new group ‘A’ (Micrognathozoa) based on pronounced similarities of the jaw apparatus called mastax. Molecular analyses suggest that Rotifera and Micrognathozoa are sister groups, and Rotifera and Gnathostomulida as sister groups, but tend to mix them with the Gastrotricha when all three groups are included. All morphological and molecular analyses place the Gnathifera in the Spiralia, but provide little support for a more specific position. Evidence also indicates close relationships with the Gastroticha or the Platyhelminthes. Gnathifera, Gastrotricha, Platyhelminthes, and Cycliophora have been assigned to a group called Platyzoa.

Keywords:   Gnathifera, Rotifera, Micrognathozoa, Gnathostomulida, Gastrotricha, Spiralia, Platyhelminthes, Cycliophora, Platyzoa

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .