Genus
Youngia Lindström, 1885
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Trilobita |
| Order | Phacopida |
| Suborder | Cheirurina |
| Family | Cheiruridae |
| Subfamily | Acanthoparyphinae |
| Genus | Ainoa |
| Nieszkowskia | |
| Pandaspinapyga | |
| Youngia | |
| Species | trispinosa |
| unranked | Hyrokybe |