†subfamily Dinophyllinae Wang 1947 (horn coral)
Anthozoa - Stauriida - Streptelasmatidae
Parent taxon: Streptelasmatidae according to D. Hill 1981
Sister taxa: none
Subtaxa: Crassilasma Dinophyllum Neobrachyelasma Porfirieviella Tenuilasma
Ecology: stationary epifaunal suspension feeder
Distribution:
• Silurian of Canada (12: British Columbia, Manitoba, New Brunswick, Northwest Territories and Yukon, Ontario, Quebec collections), China (10), Greenland (1), Japan (1), Mongolia (3), the Russian Federation (24), Sweden (1), United States (5: California, Kentucky, Ohio)
• Ordovician of China (2), the Russian Federation (1), Sweden (1)
Total: 61 collections including 92 occurrences