Genus
Glassina Hall et Clarke, 1893
Selection of related publications
Modzalevskaya, T. I. 1979. Systematics of Paleozoic athyridids.  Paleontologicheski Zhurnal   1979,   2,   48-63.
Bassett, M. G., Cocks, L. R. M. 1974. A review of Silurian brachiopods from Gotland.  Fossils and Strata   3,      1-56.
List of species
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Rhynchonellata | 
| Order | Athyridida | 
| Suborder | Athyrididina | 
| Superfamily | Athyridoidea | 
| Family | Athyrididae | 
| Subfamily | Didymothyridinae | 
| Genus | Collarothyris | 
| Didymothyris | |
| Glassina | |
| Species | pentagona | 
| usitata | 
References based on distribution
- Bassett & Cocks, 1974 Gotland