†unranked clade Zygnemobiotes
Parent taxon: Streptobionta according to P. Kenrick and P.R. Crane 1997
Sister taxa: Chaetosphaeridiobiotes, Charobiotes, Chlorokybiotes, Coleochaetobiotes, Embryobiotes, Klebsormidiobiotes
Subtaxa: Zygnemophyta