Ilmenichnus atherus Schlirf, 2011
Current taxon is already existed. See initial taxon Rhizocorallium commune
Schlirf, 2011
Diagnosis: Ilmenichnus with upper surface covered by irregular pustules.
Description: More-or-less straight, dominantly horizontal, subordinately slightly oblique, unlined, uni-lobed U-shaped spreite burrows, with protrusive U-spreite lamina and a subordinate retrusive limb-spreite lamina with a ratio of open U-limb to spreite < 0.5. Surface with longitudinal and/or transverse, fine ridges and grooves. Upper surface with irregularly shaped pustules. Burrows generally filled with ovoid pellets. One specimen (SMNS L204 b) has a true side branch emerging from the limb, with enlargements at the point of branching (Fig. 8). Diameter of U-limb frequently enlarged towards distal burrow part.
| Organism group | Biota |
| Ichnofossil group | Ichnofossils |
| Soft-sediment trace fossils | |
| Genus | Ilmenichnus |
| Species | atherus |
| devonicus | |
| multilobatus |