| author | date | title | journal / publication | Bourlat SJ, Juliusdottir T, Lowe CJ, Freeman R, Aronowicz J, Kirschner M, Lander ES, Thorndyke M, Nakano H, Kohn AB, Heyland A, Moroz LL, Copley RR, T | 2006 | Deuterostome phylogeny reveals monophyletic chordates and the new phylum Xenoturbellida. | Nature 444: 85-88. |
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| Xenacoela Xenoturbellida Bourlat, Juliusdottir, Lowe, Freeman, Aronowicz, et al., 2006 | w | primary taxonomic authority (describer) | ||
| Xenoturbellida Xenoturbellidae Westblad, 1949 | w | other taxonomic work | ||
| Deuterostomia Xenacoelomorpha Philippe, Brinkmann, Copley, Moroz, Nakano, Poustka, et al., 2011 | w | other taxonomic work |