Species
Eocymostrophia balderi Baarli, 1995
Klassificering
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Rhynchonelliformea |
| Class | Strophomenata |
| Order | Strophomenida |
| Superfamily | Strophomenoidea |
| Family | Amphistrophiidae |
| Genus | Eocymostrophia |
| Species | balderi |