Machichnus Mikuláš, Kadlecová, Fejfar et Dvořák, 2006
| ID | 16621 |
|---|---|
| Fossil group | Bioerosional trace fossils |
| Taxon | Machichnus |
| Author | Mikuláš, Kadlecová, Fejfar et Dvořák, 2006 |
| Reference | Mikuláš et al., 2006 |
| Parent taxon | Machichnidae |
| FAD | Cenomanian |
| LAD | Quaternary |
Includes:
Description(s)
Mikuláš et al., 2006:
Diagnosis: Shallow serial parallel or subparallel grooves in hard substrates. The groove surface is smooth or longitudinally striated.Each series consists usually of dozens of grooves which are typically uniform in shape and dimensions. The grooves are oriented perpendicular to substrate edge.