Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Built Environment (hierarchy name)
4. Settlements and Landscapes (hierarchy name)
5. landscapes (environments)
6. natural landscapes
7. landforms (terrestrial)
8. landmasses
9. islands (landforms)

Anotations

Scope note:

Designates circular, elliptical, or horseshoe-shaped islands or a ring of such islands, usually formed by coral reefs and enclosing a lagoon. In most cases, the lagoon occupies the place of a submerged island.