Family
Mucrospiriferidae Boucot, 1959
Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Rhynchonellata |
| Order | Spiriferida |
| Suborder | Delthyridina |
| Superfamily | Delthyrioidea |
| Family | Cyrtinopsidae |
| Delthyrididae | |
| Hysterolitidae | |
| Mucrospiriferidae | |
| Subfamily | Mucrospiriferinae |
| Genus | Boucotinskia |