Hexactinellida - Hexactinosa - Euretidae
Parent taxon: Hexactinosa according to R.E.H. Reid 2004
See also Finks and Rigby 2004, Rigby and Mohanti 1993 and Rigby et al. 2001
Sister taxa: Aphrocallistidae, Aulocalycidae, Auloplacidae, Caesaria, Carinthiaspongus, Caseispongia, Clavularia, Cribrospongiidae, Cystispongiidae, Emplocidae, Euryplegmatidae, Farreidae, Furcicanalis, Idiodictyon, Imbricareola, Laocaetis, Misonia, Multiloqua, Mysterium, Octobrum, Pileolitoidea, Pillaraspongioidea, Polysyge, Porospongia, Rhogostomium, Rhombedonium, Scopularia, Scotospongia, Sphenaulacidae, Staurodermatidae, Tesselispongia, Tremaphorus, Tretodictyidae, Vermifistula, Xenoschrammenus
Subtaxa: Belonisia Chonelasmatinae Eotretochone Euretinae Heterorete Paleoramospongia Paleoregulara Pararete Polythyridinae Pseudobecksiinae Verrucocoeloidea
Ecology: stationary epifaunal suspension feeder
Distribution:
• Miocene of Algeria (1 collection), Spain (3)
• Oligocene of United States (2: Washington)
• Eocene of India (1), Italy (1), Spain (1), United States (3: North Carolina, Washington)
• Paleocene to Eocene of New Zealand (1)
• Paleocene of New Zealand (1)
• Cretaceous of France (6), Germany (5), Poland (3), Spain (1), Sweden (1), the United Kingdom (19)
• Jurassic of Argentina (2), France (2), Germany (11), Morocco (1), Poland (23), the Russian Federation (1), Spain (1)
• Triassic of China (2)
• Devonian of Poland (1)
Total: 93 collections including 193 occurrences