Species
Hillichnus obosensis Bromley, Uchman, Gregory et Martin 2003
Classification
| Organism group | Biota | 
| Ichnofossil group | Ichnofossils | 
| Bioturbation trace fossils | |
| Family | Siphonichnidae | 
| Genus | Hillichnus | 
| Species | agrioensis | 
| obosensis | 
| Organism group | Biota | 
| Ichnofossil group | Ichnofossils | 
| Bioturbation trace fossils | |
| Family | Siphonichnidae | 
| Genus | Hillichnus | 
| Species | agrioensis | 
| obosensis |