Reconstructing the phylogeny of the Sipuncula

  title={Reconstructing the phylogeny of the Sipuncula},
  author={Anja Schulze and Edward Bayler Cutler and Gonzalo Giribet},
Sipunculans are marine spiralian worms with possible close affinities to the Mollusca or Annelida. Currently 147 species, 17 genera, 6 families, 4 orders and 2 classes are recognized. In this paper we review sipunculan morphology, anatomy, paleontological data and historical affiliations. We have conducted cladistic analyses for two data sets to elucidate the phylogenetic relationships among sipunculan species. We first analyzed the relationships among the 45 species of Phascolosomatidea with… Expand

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