Species
Unicardium cardioides Phillips, J., 1829
Klassificering
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Bivalvia |
| Subclass | Heterodonta |
| Order | Veneroida |
| Lucinoidea | |
| Family | Mactromyidae |
| Genus | Unicardium |
| Species | cardioides |