Order
Harpetida Whittington, 1959
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Trilobita |
| Order | Librostoma |
| Harpetida | |
| Family | Harpetidae |
| Harpididae |
See also
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Arthropoda |
| Subphylum | Trilobita |
| Order | Librostoma |
| Harpetida | |
| Family | Harpetidae |
| Harpididae |