| Biotic Setting | Benthic/Attached Biota |
| Biotic Class | Reef Biota |
| Biotic Subclass | Shallow/Mesophotic Coral Reef Biota |
| Biotic Group | Massive Coral Reef |
| Biotic Community | Massive Diploria Reef Massive Montastraea Reef Massive Porites Reef |
| Definition | Reefs dominated by massive corals (also known as boulder or mound corals) that are characteristically ball- or boulder-shaped
and relatively slow growing. This group includes reefs dominated by submassive corals, which are similar to massive corals,
but have a lumpier structure. Brain corals are an example of massive coral. Massive and submassive corals are resistant to strong water currents, and are therefore commonly found in shallow and mid-depth waters. These forms are common on back-reef slopes. See Figure 8.5 for an example of the massive coral growth form. |