Hydrozoa - Narcomedusae

Parent taxon: Hydrozoa according to S. Pates et al. 2021

Sister taxa: Actinulida, Delheidia, Fistulella, Graptogeitonia, Hydrocorallinae, Hydroida, Hydroidolina, Kerunia, Lemniscaterina, Likinia, Limnomedusae, Milleporidae, Milleporina, Nigriporellidae, Plumalina, Rhizostromella, Roseoporella, Siphonophorida, Sphaeractinida, Spongiomorphida, Stoliczkiella, Stylasterina, Trachylinida, Tubulariae, Tubuloparietes

Subtaxa: none

Ecology: stationary epifaunal carnivore-suspension feeder

Distribution: found only at Marjum biota, House Range (Cambrian of Utah)

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