Genus
Otraczetia Olempska, 1994
Selection of related publications
List of species
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Crustacea |
| Class | Ostracoda |
| Order | Beyrichicopida |
| Suborder | Palaeocopa |
| Superfamily | Hollinacea |
| Family | Tvaerenellidae |
| Subfamily | Tvaerenellinae |
| Genus | Duringia |
| Euprimites | |
| Otraczetia | |
| Species | bulbata |
| Genus | Piretia |
| Piretilina | |
| Retiprimites | |
| Tvaerenella | |
| Uhakiella | |
| Vendona |
References based on distribution
- Olempska, 1994 Mojcza Quarry, Poland Ordovician