Anthozoa - Heliolitida - Halysitidae
Parent taxon: Halysitidae according to E. Klaamann 1966
See also Murray 1985
Sister taxa: Drymopora, Halysitinae, Manipora, Procatenipora, Tollina
Subtaxa: Catenipora Eocatenipora Quepora
Ecology: stationary epifaunal suspension feeder-photosymbiotic
Distribution:
• Jaani of Estonia (4 collections)
• Silurian of Canada (25: British Columbia, Manitoba, Northwest Territories, Ontario, Quebec, Québec), China (6), Estonia (24), Mongolia (2), Norway (3), the Russian Federation (20), Svalbard and Jan Mayen (1), Sweden (8), Turkey (1), United States (21: Alaska, California, Iowa, Kentucky, Ohio, Wisconsin)
• Ordovician to Silurian of Canada (3: British Columbia, Québec), United States (1: Alaska)
• Ordovician of Australia (4), Canada (64: Manitoba, Northwest Territories, Nunavut, Quebec, Québec), China (23), Estonia (43), Kazakhstan (1), Latvia (1), Malaysia (1), Mongolia (2), Norway (1), the Russian Federation (25), United States (24: Alaska, California, Colorado, Michigan, Nevada, New Mexico, Texas, Wyoming)
• Ibexian of United States (1: Nevada)
Total: 309 collections including 379 occurrences