Genus
Orcus Gailite, 1966
Current taxon already exists. See initial taxon Orcofabella
 Taxon ID: 6022
Fossil group: Ostracoda
Belongs to: Venzavellinae
Other version of taxon: Orcofabella
Baltoscandian species (in database): 
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Arthropoda | 
| Subphylum | Crustacea | 
| Superclass | Oligostraca | 
| Class | Ostracoda | 
| Subclass | Podocopa | 
| Order | Palaeocopida | 
| Suborder | Beyrichicopina | 
| Palaeocopa | |
| Superfamily | Primitiopsacea | 
| Family | Primitiopsididae | 
| Subfamily | Venzavellinae | 
| Genus | Ardennea | 
| Borussulus | |
| Orcus | |
| Venzavella |