Parent taxon: Stauriida according to D. Hill 1981
Sister taxa: Arachnophyllina, Aulophyllina, 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: Calostylicae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of United States (1: Indiana collection)
• Silurian of Canada (3: Quebec), China (1), the Czech Republic (1), Estonia (2), Kazakhstan (2), Mongolia (1), the Russian Federation (2), Sweden (2), the United Kingdom (1), United States (5: Kentucky, Ohio)
• Chazyan of United States (1: Vermont)
• Ordovician of Canada (8: Ontario, Quebec), China (7), Estonia (9), Iran (1), the Russian Federation (1), United States (13: California, Georgia, Kentucky, New York, Tennessee, Virginia, Wisconsin)
Total: 61 collections including 68 occurrences