| author | date | title | journal / publication | Jondelius U, Ruiz-Trillo I, Baguna J, Riutort M | 2002 | The Nemertodermatida are basal bilaterians not members of Platyhelminthes. | Zool Scr 31:201-215 |
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| Xenacoela Acoela Uljanin, 1870 | w | other taxonomic work | ||
| Bilateria Nephrozoa Jondelius, Ruiz-Trillo, Baguna, & Riutort, 2002 | - | primary taxonomic authority (describer) |