Subspecies
Tetrada troppenzorum Schallreuter, 1988
Current taxon already exists. See initial taxon Tetrada (Tetrada) krausei
 Taxon ID: 19442
Fossil group: Ostracoda
Belongs to: Tetrada
Other version of taxon: Tetrada (Tetrada) krausei
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 | |
| Family | Ctenonotellidae | 
| Genus | Tetrada | 
| Subgenus | (Neotsitrella) | 
| (Perplana) | |
| (Tallinnopsis) | |
| (Tetrada) | |
| Species | hibyi | 
| ventroconcava | |
| Subspecies | troppenzorum |