Genus
Ordovicia Neckaja, 1956
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Superclass | Oligostraca |
| Class | Ostracoda |
| Order | Beyrichicopida |
| Suborder | Palaeocopa |
| Superfamily | Hollinacea |
| Family | Tetradellidae |
| Subfamily | Glossomorphitinae |
| Perspicillinae | |
| Sigmoopsinae | |
| Sylthinae | |
| Tetradellinae | |
| Genus | Ordovicia |
| Uvonhachtia |