| author | date | title | journal / publication | Philippe H, Brinkmann H, Copley RR, Moroz LL, Nakano H, Poustka A, Wallberg A, Peterson KJ, Telford MJ | 2011 | Acoelomorph flatworms are deuterostomes related to Xenoturbella. | Nature 470:255-260. |
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| Bilateria Xenacoelomorpha Philippe, Brinkmann, Copley, Moroz, Nakano, Poustka, et al., 2011 | w | primary taxonomic authority (describer) | ||
| Xenoturbellidae Xenoturbella Westblad, 1949 | w | other research on this sp. |