†phylum Platyhelminthes Gegenbaur 1859
Parent taxon: Platyzoa according to Y. Passamaneck and K. M. Halanych 2006
See also Brooks 1989, Edgecombe et al. 2011 and Nielsen 2012
Sister taxa: none
Subtaxa: Cestoda Rhabdocoela Trematoda Turbellaria