Parent taxon: Octocorallia according to C. S. McFadden et al. 2021
See also Sepkoski 2002 and Veron 2000
Sister taxa: Alcyonacea, Coenothecalia, Echmatocrinidae, Ellisella, Gorgonacea, Heterocorallia, Pennatulacea, Plexauridae, Trachypsammia, Waiparaconidae
Subtaxa: Epiphaxum Heliopora Helioporidae Kaluginella Octotremacis Polytremacis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Quaternary of China (1 collection), Cook Islands (1), Guam (1), Japan (2), Maldives (2), the Marshall Islands (2), Papua New Guinea (1), the Philippines (2), Taiwan (1), Tuvalu (1)
• Pliocene to Pleistocene of the Philippines (1)
• Miocene of France (1), Indonesia (6), Iran (1), Malaysia (2), the Marshall Islands (3), Northern Mariana Islands (1)
• Oligocene of Antigua and Barbuda (1), France (1), Italy (6), Jamaica (2)
• Eocene to Miocene of the Marshall Islands (3)
• Eocene of Croatia (2), Cuba (1), the Czech Republic (2), France (1), Germany (1), Hungary (5), Italy (3), the Marshall Islands (2), Mexico (3), Panama (2), Romania (1), Spain (1)
• Paleocene of Denmark (1), France (1), Iran (1), Italy (1), Puerto Rico (1), Spain (1), Turkmenistan (1), Ukraine (1)
• Cretaceous of Armenia (1), Austria (5), Azerbaijan (1), Bulgaria (2), the Czech Republic (7), France (4), Georgia (1), Germany (8), Greece (3), Jamaica (3), Japan (7), the Marshall Islands (1), Mexico (1), Oman (1), Poland (2), Romania (1), Serbia and Montenegro (4), Slovakia (3), Slovenia (2), Somalia (1), Spain (4), Switzerland (1), Tunisia (1), Turkmenistan (1), Ukraine (2), the United Arab Emirates (2), United States (4: Arizona, Texas), Uzbekistan (2)
• Jurassic to Cretaceous of China (1)
Total: 150 collections including 168 occurrences