Subphylum Isoetophytina Doweld 2001
Full reference: A. B. Doweld. 2001. Prosyllabus Tracheophytorum. Tentamen Systematis Plantarum Vascularium.
Parent taxon: Isoetophyta according to A. B. Doweld 2001
Sister taxa: Leclercqiophytina, Selaginellophytina
Subtaxa: Lepidocarpopsida
Ecology: "photoautotroph"