†family Ditoecholasmatidae Sutherland 1965 (horn coral)
Anthozoa - Stauriida - Ditoecholasmatidae
Parent taxon: Streptelasmatina according to D. Hill 1981
Sister taxa: Acrophyllidae, Amsdenoididae, Cyathaxoniicae, Kodonophyllidae, Mucophyllidae, Paliphyllidae, Streptelasmatidae, Zaphrenticae
Subtaxa: Ditoecholasma
Ecology: stationary epifaunal suspension feeder
Distribution:
• Silurian of United States (2: Indiana, Oklahoma collections)
• Ordovician to Silurian of the Russian Federation (1)
• Ordovician of the Russian Federation (1)
Total: 4 collections each including a single occurrence