†family Calostylidae Zittel 1879 (horn coral)
Anthozoa - Stauriida - Calostylidae
Parent taxon: Calostylicae according to D. Hill 1981
Sister taxon: Lambelasmatidae
Subtaxa: Calostylis Helminthidium Ningnanophyllum Palaearaea Yohophyllum
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)
• Ordovician of China (2), Estonia (3)
Total: 26 collections including 33 occurrences