Phrixichnus Bromley et Asgaard, 1993
| ID | 16402 |
|---|---|
| Fossil group | Bioerosional trace fossils |
| Taxon | Phrixichnus |
| Author | Bromley et Asgaard, 1993 |
| Reference | Bromley & Asgaard, 1993b |
| Parent taxon | Gastrochaenolitidae |
| FAD | Pliocene |
| LAD | Pliocene |
Includes:
| Species | Reference |
|---|---|
| Phrixichnus phrix | Bromley & Asgaard, 1993b |
Description(s)
Knaust, 2012a:
Unbranched, clavate.
Buatois et al., 2017:
Category of architectural design: 2.66. Clavate-shaped borings.
Bromley & Asgaard, 1993b:
Diagnosis: Large, bilaterally symmetrical, pouchshaped boring having a rectangular/oval cross-section. Two gently concave or flat areas of wall, which meet along one edge of the boring, have a strong ornament of arcuate, concentric grooves. The remaining part of the wall and the distal end are smooth and concave.