Micrabaciidae

Micrabaciidae is a family of marine stony corals of the order Scleractinia.
The World [Register of Marine Species] lists the following genera:

Leptopenus Moseley, 1881
Letepsammia Yabe & Eguchi, 1932
Micrabacia† Milne Edwards & Haime, 1849
Rhombopsammia Owens, 1986
Stephanophyllia Michelin, 1841