Deuterostome phylogeny reveals monophyletic chordates and the new phylum Xenoturbellida

  title={Deuterostome phylogeny reveals monophyletic chordates and the new phylum Xenoturbellida},
  author={Sarah J. Bourlat and Thorhildur Juliusdottir and Christopher J. Lowe and Robert H. Freeman and Jochanan Aronowicz and Mark J. Kirschner and Eric S. Lander and Michael Thorndyke and Hiroaki Nakano and Andrea B. Kohn and Andreas Heyland and Leonid L. Moroz and R. R. Copley and Maximilian J. Telford},
Deuterostomes comprise vertebrates, the related invertebrate chordates (tunicates and cephalochordates) and three other invertebrate taxa: hemichordates, echinoderms and Xenoturbella. The relationships between invertebrate and vertebrate deuterostomes are clearly important for understanding our own distant origins. Recent phylogenetic studies of chordate classes and a sea urchin have indicated that urochordates might be the closest invertebrate sister group of vertebrates, rather than… CONTINUE READING
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