Genus
Knethichnus Jacobsen et Bromley, 2009
Taxon description
Wisshak et al., 2019a
Predation; substrate osteic; tracemaker vertebrate
Jacobsen & Bromley, 2009
Diagnosis: Scraping structures in witch serration traces extend as parallel grooves leading in some cases away from an initial groove.
Luokittelu
| Organism group | Biota |
| Ichnofossil group | Ichnofossils |
| Bioerosional trace fossils | |
| Family | Machichnidae |
| Genus | Knethichnus |
| Species | parallelum |
| Genus | Linichnus |
| Machichnus | |
| Mandaodonites | |
| Nihilichnus |