Genus
Composita Brown, 1845
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Rhynchonellata |
| Order | Athyridida |
| Suborder | Athyrididina |
| Superfamily | Athyridoidea |
| Family | Athyrididae |
| Subfamily | Spirigerellinae |
| Genus | Composita |
| Species | subtiliata |