†order Hetairacyathida Bedford and Bedford 1937 (sponge)
Heteractinida - Hetairacyathida
Parent taxon: Heteractinida according to R. M. Finks et al. 2004
Sister taxa: Archicladium, Conwaymorrisispongia, Corynospongia, Octactinellida, Polycladium
Subtaxa: none
Ecology: stationary intermediate-level epifaunal suspension feeder
Distribution: there are no occurrences of Hetairacyathida in the database