Genus
Zygospira Hall, 1862
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Rhynchonellata |
| Order | Atrypida |
| Suborder | Anazygidina |
| Superfamily | Anazygoidea |
| Family | Anazygidae |
| Subfamily | Anazyginae |
| Genus | Anazyga |
| Zygatrypa | |
| Zygospira |
See also