Genus Concentrica
- Species total:
- 5
- Age range:
- 1746.67 - 514 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Concentrica sp | Late Precambrian | Late Precambrian |
|
| Concentrica solida | Early Cambrian | Middle Cambrian |
|
| Concentrica miranda | Early Cambrian | Middle Cambrian |
|
| Concentrica manifesta | Silurian | Silurian |
|
| Concentrica corrugata | Vendian | Vendian |
|