Merulinidae

Merulinidae is a family of reef-building stony corals.

Characteristics
All the genera in this family are colonial, reef-building corals. Skeletal structures are similar to those of Faviidae but are highly fused, without paliform lobes. The valleys are superficial or may be indistinct because of fan-like spreading or contortions in the ridges. Faviidae and Trachyphylliidae are the most closely related families.

Genera
The World Register of Marine Species includes these genera in the family:
 * Astrea Lamarck, 1801
 * Australogyra Veron & Pichon, 1982
 * Boninastrea Yabe & Sugiyama, 1935
 * Caulastraea Dana, 1846
 * Coelastrea Verrill, 1866
 * Cyphastrea Milne Edwards & Haime, 1848
 * Dipsastraea Blainville, 1830
 * Echinopora Lamarck, 1816
 * Erythrastrea Pichon, Scheer & Pillai, 1983
 * Favites Link, 1807
 * Goniastrea Milne Edwards & Haime, 1848
 * Hydnophora Fischer von Waldheim, 1807
 * Hydnophyllia † Reis, 1889
 * Isastraea† Milne Edwards & Haime, 1851
 * Leptoria Milne Edwards & Haime, 1848
 * Merulina Ehrenberg, 1834
 * Mycedium Milne Edwards & Haime, 1851
 * Orbicella Dana, 1846
 * Oulophyllia Milne Edwards & Haime, 1848
 * Paragoniastrea Huang, Benzoni & Budd, 2014
 * Paraleptoria† Budd & Bosellini, 2016
 * Paramontastraea Huang & Budd, 2014
 * Pectinia Blainville, 1825
 * Physophyllia Duncan, 1884
 * Platygyra Ehrenberg, 1834
 * Scapophyllia Milne Edwards & Haime, 1848
 * Trachyphyllia Milne Edwards & Haime, 1849