Cephalodiscus nigrescens
Cephalodiscus nigrescens is a species in the genus Cephalodiscus, family Cephalodiscidae, order Cephalodiscoidea.
Scientific classification
| Rank | Taxon |
|---|---|
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Graptolithoidea |
| Order | Cephalodiscoidea |
| Family | Cephalodiscidae |
| Genus | Cephalodiscus |
| Species | Cephalodiscus nigrescens |