Genus Acus
- Species total:
- 2
- Age range:
- 660 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Acus concentricus | Late Sinian | Late Sinian |
|
| Acus muricatus | Late Sinian | Late Sinian |
|
Genus Acus
- Species total:
- 2
- Age range:
- 660 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Acus concentricus | Late Sinian | Late Sinian |
|
| Acus muricatus | Late Sinian | Late Sinian |
|