Species
Cyrtia exporrecta (Wahlenberg, 1821)
Synonymy list
1821     Anomites exporrectus — Wahlenberg , pp. 64
1828     Cyrtia exporrecta (Wahlenberg) — Dalman , pp. 118, fig. 3:1
1828     Cyrtia trapezoidalis — Hisinger , fig. 6:1a-c
1828     Cyrtia trapezoidalis Hisinger — Dalman , pp. 119, fig. 3:2
1839     Spirifer trapezoidalis (Dalman) — J. de. C. Sowerby , pp. 610, fig. pl. 5: 14
1861     Spirifera exporrecta (Wahlenberg) — Lindström , pp. 358
1867     Spirifer (Cyrtia) exporrecta (Wahlenberg) — Davidson , pp. 99
1883     Cyrtia exporrecta (Wahlenberg) — Davidson , pp. 137 pars, fig. pl. 8: 4, non 5
1954     non Cyrtia exporrecta (Wahlenberg, 1821) — Alichova et al. , pp. 38, fig. pl. 23: 2
1954     Cyrtia exporrecta (Wahlenberg, 1821) — Alichova et al. , pp. 38, fig. pl. 23: 2
Selection of related publications
Bassett, M. G., Cocks, L. R. M. 1974. A review of Silurian brachiopods from Gotland.  Fossils and Strata   3,      1-56.
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Rhynchonellata | 
| Order | Spiriferida | 
| Suborder | Spiriferidina | 
| Superfamily | Cyrtioidea | 
| Family | Cyrtioidae | 
| Subfamily | Cyrtiinae | 
| Genus | Cyrtia | 
| Species | exporrecta | 
| laevis | |
| nikiforovae | |
| trapezoidalis | |
| wenjukovi |