Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. architectural elements
7. [structural elements and components for structural elements]
8. structural elements
9. enclosing structural elements
10. [walls and wall components]
11. wall components
12. [wall components by form or function]
13. decorative wall components

Anotations

Scope note:

Refers to circular panels, usually sculptured or otherwise decorated, set as decorative elements in an architectural context. For similarly shaped and decorated motifs in two-dimensional media, use "medallions (ornament areas)."