Parent taxon: Stauriida according to D. Hill 1981
Sister taxa: Arachnophyllina, Aulophyllina, Calostylina, Caniniina, Columnariina, Columnaxonidae, Cyathophyllina, Diffingiina, Heritschioides hammani, Ketophyllina, Kleopatrinidae, Lithostrotionina, Lomaphyllum, Lonsdaleiina, Lophophyllidiidae, Lophotichiidae, Mccloudius parvus, Metriophyllina, Mictocystoides, Nanophyllum, Paraceriaster, Petalaxidae, Petraphyllidae, Plerophyllina, Ptenophyllina, Romanophyllidae, Stauriina, Stereolasmatina, Streptelasmatina, Tachylasmatina, Yatsengiidae
Subtaxa: Halliidae Lykophyllidae
Ecology: stationary epifaunal suspension feeder
Distribution:
• Couvinien of Australia (1 collection)
• Devonian of Afghanistan (2), Australia (2), Canada (3: Ontario), Kazakhstan (1), Morocco (1), the Russian Federation (3), Spain (5), Tajikistan (7), the United Kingdom (1), United States (21: Alaska, California, Indiana, Kentucky, Nevada, New York), Vietnam (1)
• Jaani of Estonia (1)
• Silurian of Australia (10), Belarus (1), Canada (6: Manitoba, New Brunswick, Quebec), China (11), Mongolia (4), Norway (1), the Russian Federation (31), Sweden (5), Tajikistan (3), Ukraine (6), the United Kingdom (6), United States (11: Alaska, California, Kentucky)
• Ordovician to Silurian of the Russian Federation (1)
• Ordovician of Australia (2), Canada (1: Manitoba), China (2), United States (2: New Mexico, Texas, Wyoming)
Total: 152 collections including 210 occurrences