Species
Spirifer tenellus Barrande, 1848
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 |