Parent taxon: Stauriida according to D. Hill 1981
Sister taxa: Aulophyllina, Calostylina, Caniniina, Columnariina, Columnaxonidae, Cyathophyllina, Diffingiina, Heritschioides hammani, Ketophyllina, Kleopatrinidae, Lithostrotionina, Lomaphyllum, Lonsdaleiina, Lophophyllidiidae, Lophotichiidae, Lycophyllina, Mccloudius parvus, Metriophyllina, Mictocystoides, Nanophyllum, Paraceriaster, Petalaxidae, Petraphyllidae, Plerophyllina, Ptenophyllina, Romanophyllidae, Stauriina, Stereolasmatina, Streptelasmatina, Tachylasmatina, Yatsengiidae
Subtaxa: Arachnophyllidae Entelophyllidae Expressophyllidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Canada (1: Yukon collection), the Russian Federation (2), Tajikistan (3), United States (7: Alaska, California, Indiana, Kentucky, New York), Vietnam (1)
• Clinton of Canada (1: British Columbia)
• Silurian to Devonian of Tajikistan (1)
• Niagaran of United States (1: Indiana)
• Silurian of Australia (7), Belarus (2), Canada (24: Northwest Territories, Ontario, Quebec, Québec, Yukon), China (13), the Czech Republic (4), Estonia (8), India (3), Japan (4), Mongolia (5), the Russian Federation (39), Sweden (4), Tajikistan (1), Ukraine (2), the United Kingdom (2), United States (35: Alaska, California, Iowa, Kentucky, Ohio, Oklahoma)
• Ordovician of the Russian Federation (1)
Total: 171 collections including 238 occurrences