†subclass Eublastoidea Bather 1899 (blastoid)
Parent taxon: Blastoidea according to J.E. Bauer et al. 2019
Sister taxa: Coronoidea, Dissimiloblastus, Freisoblastus, Lotusoblastus, Lysocystites, Macurdablastus, Passalocrinus, Spiraculata, Zygocrinus
Subtaxa: Fissiculata Stomatoblastida Tubuloblastida
Ecology: stationary intermediate-level epifaunal suspension feeder