Species
Cyrtia trapezoidalis Hisinger, 1828
Synonyymit
1967     Cyrtia exporrecta (Wahlenberg, 1821) — Alichova , pp. 212
1974     Cyrtia exporrecta (Wahlenberg, 1821) — Bassett & Cocks , pp. 35
1976     Cyrtia trapezoidalis Hisinger — Tsegelnjuk , pp. 92-93, fig. pl. 12: 2-6
1984     Cyrtia exporrecta (Wahlenberg, 1821) — Rubel et al. , pp. 26
Aiheeseen liittyvät julkaisut
Luokittelu
| 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 |