| Correct spelling | : | Plakobranchoidea (Superfamily) Gray, 1840 | |
Ref: P. Bouchet et al., 2017: 189. [inferred] |
| Current spelling | : | Plakobranchoidea (Superfamily) Gray, 1840 | |
Ref: A. Marín & J. Ros, 2004: table 1 (p. 229). |
| Former spelling | : | Plakobranchoidea (Superfamily) Gray, 1840 | |
Ref: P. Bouchet & J.-P. Rocroi, 2005: 133. [inferred] |