Parent taxon: Stauriida according to O. L. Kossovaya et al. 2016
See also Hill 1981
Sister taxa: Arachnophyllina, Aulophyllina, Calostylina, 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: Bothrophyllidae Cyathopsidae Endamplexidae Uraliniidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Permian of Bolivia (1 collection), Canada (8: British Columbia, Nunavut, Yukon), China (23), Guatemala (1), Iran (6), Kyrgyzstan (2), Laos (1), the Russian Federation (23), Slovenia (1), Svalbard and Jan Mayen (7), Tajikistan (1), Turkey (1), United States (15: California, Nevada), Vietnam (2)
• Carboniferous to Permian of Svalbard and Jan Mayen (1)
• Carboniferous of Algeria (3), Australia (2), Belgium (1), Canada (9: Alberta, British Columbia, Northwest Territories, Nunavut, Yukon), China (14), Egypt (1), France (3), Germany (2), Ireland (15), Japan (6), Mexico (1), Morocco (10), the Russian Federation (8), Spain (3), Svalbard and Jan Mayen (7), Turkey (5), Ukraine (5), the United Kingdom (101), United States (112: Alabama, Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, Pennsylvania, Texas, Utah, Wyoming)
• Devonian of Australia (1), China (2), Kazakhstan (1), United States (11: Montana, and Wyoming, New Mexico, New York)
Total: 416 collections including 588 occurrences