Genus
Laevicyclus Quenstedt, 1879
Taxon description
Knaust, 2015b
Diagnosis (emended): Cylindrical vertical burrows with an actively filled mantle and a passively filled core. The aperture can be funnelshaped enlarged.
Luokittelu
| Organism group | Biota |
| Ichnofossil group | Ichnofossils |
| Bioturbation trace fossils | |
| Family | Siphonichnidae |
| Genus | Hillichnus |
| Laevicyclus | |
| Species | parvus |
| Genus | Parahaentzschelinia |
| Scalichnus | |
| Siphonichnus |