Stylasteridae

See text Stylasteridae, also known as lace corals, is a family of colonial hydrozoans with a calcified skeleton.

[1][2] They first appeared 65 million years ago in deep waters.

About 10% of the species have adapted to shallow water.

[3] In shallow reefs they can grow up to 25 cm tall × 30 cm wide,[4] but some species in deeper waters can reach 1 meter.

[5] According to the World Register of Marine Species, the following genera belong to this family:[1]