†order Hillocystida Jell 1983
Full reference: P. A. Jell. 1983. Early Devonian echinoderms from Victoria (Rhombifera, Blastoidea and Ophiocistoidea). Memoirs of the Association of Australasian Palaeontologists 1:209-235
Parent taxon: Rhombifera according to P. A. Jell 1983
Sister taxa: Acantholepis, Caryocystitida, Caryocystitidacea, Dibrachicystidae, Dichoporita, Glyptocystitida, Glyptocystitidacea, Glyptocystitoida, Pirocystella, Pleurocystitida, Polycosmitida, Thomacystis
Subtaxa: Hillocystidae
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution: there are no occurrences of Hillocystida in the database