†order Hydrocorallinae Mosley
Parent taxon: Hydrozoa according to E. O. Ulrich 1904
Sister taxa: Actinulida, Delheidia, Fistulella, Graptogeitonia, Hydroida, Kerunia, Lemniscaterina, Likinia, Limnomedusae, Milleporidae, Milleporina, Narcomedusae, Nigriporellidae, Plumalina, Rhizostromella, Roseoporella, Siphonophorida, Sphaeractinida, Spongiomorphida, Stoliczkiella, Stylasterina, Trachylinida, Tubulariae, Tubuloparietes
Subtaxa: none
Ecology: stationary epifaunal carnivore-suspension feeder
Distribution: found only at North side of the Marmolata / Passo di Fedaia (Triassic of Italy)