| Olenina Temporal range:
| |
|---|---|
| |
| Triarthrus eatoni | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | †Trilobita |
| Order: | †Ptychopariida |
| Suborder: | †Olenina |
| Families | |
| |
Olenina is an extinct suborder of the trilobite order Ptychopariida.[1]
- ^ "Order - Ptychopariida - Suborder Olenina". Trilobites.info.