Umbichnus Martinell, Domènech et Bromley, 1999
| ID | 16407 |
|---|---|
| Fossil group | Bioerosional trace fossils |
| CAD | Pouch borings |
| Type | Macroboring |
| Substrate | Calcareous substrate |
| Taxon | Umbichnus |
| Author | Martinell, Domènech et Bromley, 1999 |
| Reference | Martinell et al, 1999 |
| Parent taxon | Rogerellidae |
| Is valid | Yes |
| FAD | Paleocene |
| LAD | Recent |
Includes:
| Species | Reference | Valid? |
|---|---|---|
| Umbichnus inopinatus | Martinell et al, 1999 | Yes |
Synonymy
| Year | Synonym | Author | Pages | Figs | Reference |
|---|---|---|---|---|---|
| 2012 | Umbichnus Martinell, Domènech & Bromley, 1999 | Richiano, Aguirre & Farinati | 170 | 9H-I | Richiano et al., 2012 |
| 1999 | Umbichnus nov. | Martinell, Domènech & Bromley | 193 | Martinell et al, 1999 |
Descriptions and remarks
Unbranched, pouches.
Category of architectural design: 2.65. Pouch borings.
Umbichnus Martinell et al., 1999 is an unusual pouch-shaped boring cut into the hinge plates of both valves of bivalves. The authors, though, cannot dismiss the possibility that it is a dissolution feature and not a boring (Martinell et al., 1999).
Diagnosis: Sack-shaped boring having a single aperture, etched into both valves of bivalves in the hinge plates beneath the umbones.