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SCHIZOCOELIA

Claus Nielsen

in Animal Evolution: Interrelationships of the Living Phyla

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199606023
eISBN:
9780191774706
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199606023.003.0024
Subject:
Biology, Evolutionary Biology / Genetics, Animal Biology

The Schizocoelia is a clade comprised of four phyla: Annelida, Sipuncula, Mollusca, and Nemertini. The name is synonymous with Eutrochozoa, and the groups within the Spiralia possess the lateral ... More


Phylum Annelida

Claus Nielsen

in Animal Evolution: Interrelationships of the Living Phyla

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199606023
eISBN:
9780191774706
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199606023.003.0025
Subject:
Biology, Evolutionary Biology / Genetics, Animal Biology

Annelida is a phylum consisting of more than 16,500 described, living species of aquatic or terrestrial animals that are ecologically and systematically important. Two questionable species are the ... More


Phylum Platyhelminthes

Claus Nielsen

in Animal Evolution: Interrelationships of the Living Phyla

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199606023
eISBN:
9780191774706
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199606023.003.0029
Subject:
Biology, Evolutionary Biology / Genetics, Animal Biology

Platyhelminthes, or flatworms, is a phylum consisting of about 25,000 described species of ‘turbellarians’, flukes, and tapeworms. The economically important parasitic flukes (Digenea and Monogenea) ... More


BRACHIOZOA

Claus Nielsen

in Animal Evolution: Interrelationships of the Living Phyla

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199606023
eISBN:
9780191774706
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199606023.003.0039
Subject:
Biology, Evolutionary Biology / Genetics, Animal Biology

The Brachiozoa is a clade consisting of two phyla, phoronids and brachiopods. Some molecular studies show that phoronids are an ingroup of the brachiopods, although this seems unlikely based on ... More


Phylum Chaetognatha

Claus Nielsen

in Animal Evolution: Interrelationships of the Living Phyla

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199606023
eISBN:
9780191774706
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199606023.003.0055
Subject:
Biology, Evolutionary Biology / Genetics, Animal Biology

The Chaetognatha, or arrowworms, is a small phylum consisting of roughly 120 species of marine, mainly holopelagic ‘worms’. Some species, mainly of Spadella and Paraspadella, are benthic. ... More


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