Parent taxon: Tabulata according to D. Hill 1981
Sister taxa: Acaciaporella, Auloporida, Fainella, Favosichaetetes, Favositida, Guizhouchaetetes, Halysitida, Heliolitida, Hemiplasmopora, Kimilites, Kitakamilia, Lichenariida, Liopora, Lipopora, Mirandellidae, Neoroemeriidae, Nitkovicepora, Pachypseudoplasmopora, Plasmadictyon, Pseudoflecteria, Pseudotetradium, Rhacopora, Shanxipora, Spirapora, Subcladopora, Sytovaelites, Tetradiida, Victorilites, Yaoxianopora
Subtaxa: Billingsariidae Columnopora Lessnikovaea Syringophyllidae
Ecology: stationary epifaunal suspension feeder-photosymbiotic
Distribution:
• Silurian of China (1 collection)
• Whiterockian of United States (1: Vermont)
• Chazyan of Canada (8: Quebec), United States (8: Tennessee, Vermont, Virginia)
• Ordovician to Silurian of Canada (3: Québec)
• Ordovician of Australia (6), Canada (72: Manitoba, Northwest Territories, Nunavut, Ontario, Quebec, Québec), China (8), Estonia (2), Norway (1), the Russian Federation (11), United States (37: Alabama, Alaska, Colorado, Kentucky, Michigan, New Mexico, New York, Ohio, Tennessee, Texas, Wisconsin, Wyoming)
Total: 158 collections including 195 occurrences