Species
Spirifer deflexus Roemer, 1834
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Rhynchonellata |
| Order | Spiriferida |
| Suborder | Spiriferidina |
| Superfamily | Spiriferoidea |
| Family | Spiriferidae |
| Subfamily | Spiriferinae |
| Genus | Spirifer |
| Subgenus | (Spirifer) |
| Species | (Reticularia) finbriatus |
| cameratus | |
| decheni | |
| deflexus | |
| macropterus | |
| tenellus | |
| togatus |