Phrixichnus Bromley et Asgaard, 1993
| ID | 16402 |
|---|---|
| Fossil group | Bioerosional trace fossils |
| CAD | Clavate-shaped borings |
| Type | Macroboring |
| Substrate | Calcareous substrate |
| Taxon | Phrixichnus |
| Author | Bromley et Asgaard, 1993 |
| Reference | Bromley & Asgaard, 1993b |
| Parent taxon | Gastrochaenolitidae |
| Is valid | Yes |
| FAD | Pliocene |
| LAD | Pliocene |
Includes:
| Species | Reference | Valid? |
|---|---|---|
| Phrixichnus phrix | Bromley & Asgaard, 1993b | Yes |
Synonymy
| Year | Synonym | Author | Pages | Figs | Reference |
|---|---|---|---|---|---|
| 1993 | Phrixichnus nov. | Bromley & Asgaard | 96 | Bromley & Asgaard, 1993b |
Descriptions and remarks
Unbranched, clavate.
Category of architectural design: 2.66. Clavate-shaped borings.
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.