Parent taxon: Hydrozoa according to D. Vachard et al. 2012
Sister taxa: Actinulida, Delheidia, Fistulella, Graptogeitonia, Hydrocorallinae, Hydroida, Kerunia, Lemniscaterina, Likinia, Limnomedusae, Milleporidae, Milleporina, Narcomedusae, Plumalina, Rhizostromella, Roseoporella, Siphonophorida, Sphaeractinida, Spongiomorphida, Stoliczkiella, Stylasterina, Trachylinida, Tubulariae, Tubuloparietes
Subtaxa: Tubiphytes
Ecology: stationary epifaunal carnivore-suspension feeder
Distribution:
• Paleocene of Croatia (1 collection), Italy (2)
• Cretaceous of Bulgaria (1), Canada (1: Nova Scotia)
• Jurassic of Algeria (3), Austria (2), Canada (2: Nova Scotia), France (3), Germany (4), Iran (1), Italy (4), Morocco (3), Portugal (8), Spain (3), Turkey (1)
• Triassic of Austria (15), Bosnia and Herzegovina (1), China (46), Germany (2), Greece (5), Hungary (2), Indonesia (1), Israel (1), Italy (19), Japan (7), Malaysia (1), Oman (3), Poland (1), Serbia and Montenegro (1), Slovenia (3), Spain (5), Thailand (1), Turkey (4)
• Permian of Australia (5), Austria (2), Canada (4: Nunavut), China (21), East Timor (3), Greece (2), Iran (2), Italy (2), Japan (5), Malaysia (1), Mexico (2), Norway (7), the Russian Federation (2), Slovenia (5), Tajikistan (6), Turkey (10), United States (21: California, Nevada, Nevada and Utah, New Mexico, Texas)
• Carboniferous to Permian of the Russian Federation (2)
• Carboniferous of Austria (1), Canada (1: Nunavut), China (4), Japan (2), the Russian Federation (1), Spain (3), Turkey (6), Ukraine (1), United States (3: Idaho, New Mexico)
• Ordovician of the Russian Federation (1)
Total: 282 collections including 299 occurrences