†unranked clade Trochozoa
Parent taxon: Spiralia according to K.J. Peterson et al. 2005
See also Edgecombe et al. 2011 and Zrzavy et al. 1998
Sister taxa: Brachiozoa, Chaetognathifera, Gastrotricha, Gnathifera, Lophotrochozoa, Platyzoa, Schizocoela
Subtaxa: Eutrochozoa Nemertea