Bock, 1938
Families: The order contains two families, the Family Helioporacea and Family Lithotelestidae.
Description: Skeleton of massive aragonite, colonies massive (Helioporacea) or small, united by ribbonlike stolons (Lithotelestidae). The Lithotelestidae are known from deeper water.
Only one species found in the Indo-Pacific: Heliopora coerulea (detail)(1)