New deep-sea species of Xenoturbella and the position of Xenacoelomorpha

@article{Rouse2016NewDS,
  title={New deep-sea species of Xenoturbella and the position of Xenacoelomorpha},
  author={G. Rouse and N. G. Wilson and J. I. Carvajal and R. Vrijenhoek},
  journal={Nature},
  year={2016},
  volume={530},
  pages={94-97}
}
The discovery of four new Xenoturbella species from deep waters of the eastern Pacific Ocean is reported here. The genus and two nominal species were described from the west coast of Sweden, but their taxonomic placement remains unstable. Limited evidence placed Xenoturbella with molluscs, but the tissues can be contaminated with prey. They were then considered deuterostomes. Further taxon sampling and analysis have grouped Xenoturbella with acoelomorphs (=Xenacoelomorpha) as sister to all… Expand
Development of Xenoturbellida.
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  • 2019
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Comparison with the other marine invertebrate larvae suggests that the morphologically simple swimming larvae described in Xenoturbella represent an ancestral larval type of all metazoans and bilaterians. Expand
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Phylogeny: A home for Xenoturbella
  • H. Gee
  • Biology, Medicine
  • Nature
  • 2016
TLDR
Four new deep-sea species of Xenoturbella are added from the eastern Pacific Ocean to the two already known from the Atlantic, and phylogenetic analysis aligns them at the base of the Protostomia or even as basal bilaterians. Expand
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TLDR
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