Parent taxon: Porifera according to B.D. Webby 2015
Sister taxa: Alasonia, Aphlebospongia, Archaeocyatha, Ausia, Batchatocyathus, Bicyathus, Bortepesia, Calcarea, Clathrispongia, Codites, Coniatopenia, Cornuaspongia, Coronacollina, Cotyliscus, Cribricyatha, Cribroscyphia, Cuneiphycus, Cupulochonia, Cupulospongia, Cyclospongia, Demospongiae, Diestosphecion, Diplostomella, Disjectoporidae, Dulmius, Dulmius innovatus, Dyocopanon, Eocoryne, Eocyathispongia, Floriana, Glenodictyum, Heteractinida, Hexactinellida, Holocoelia, Homoscleromorpha, Lamellispongia, Limnoretheles, Megalelasma, Microcoryne, Monotheles, Nabaviella, Nelumbosium, Nelumbosium primum, Oligoplagia, Palaeophragmodictya, Pharetronida, Pilosphecion, Plectinia, Polyactinellidae, Polycnemiseudea, Psephidia, Puppispongia, Puppispongia prostrema, Radicispongia, Rauffia, Rugoconites, Sclerospongiae, Scribroporella, Scyphia, Shitangspongia, Sinoflabrum, Sparsispongia, Sphinctozoa, Spirocyathidae, Stromatofungia, Stromatoporoidea, Taraxaculum, Textispongia, Thalamospongia, Thectardis, Toriscodermia, Tragos, Trammeria, Tubispongia
Subtaxa: Pulchrilaminidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Whiterockian of Canada (1: Newfoundland and Labrador collection)
• Arenigian of Argentina (1)
• Arenig of Argentina (1), Canada (2: Newfoundland and Labrador), United States (3: Oklahoma, Texas)
• Ordovician of Canada (2: Newfoundland and Labrador), United States (2: Oklahoma)
• Tremadoc of China (3)
Total: 15 collections each including a single occurrence