Orthogonum Orthogonum Radtke, 1991
Luokittelu
| Organism group | Biota |
| Ichnofossil group | Ichnofossils |
| Bioerosional trace fossils | |
| Genus | Orthogonum |
| Species | appendiculatum |
| fusiferum | |
| giganteum | |
| lineare | |
| scalariformis | |
| tripartitum | |
| tubulare | |
| unranked | Orthogonum |
| Organism group | Biota |
| Ichnofossil group | Ichnofossils |
| Bioerosional trace fossils | |
| Genus | Orthogonum |
| Species | appendiculatum |
| fusiferum | |
| giganteum | |
| lineare | |
| scalariformis | |
| tripartitum | |
| tubulare | |
| unranked | Orthogonum |