Genus Quadraditum
- Species total:
- 8
- Age range:
- 1746.67 - 345 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Quadraditum | Silurian | Gedinnian |
|
| Quadraditum deunffii | Early Ludlovian | Early Ludlovian |
|
| Quadraditum fantasticum | Early Paleozoic | Devonian |
|
| Quadraditum ibericum | Middle Llandoverian | Pridolian |
|
| Quadraditum incisum | Silurian | Emsian |
|
| Quadraditum scutiferum | Early Devonian | Emsian |
|
| Quadraditum sp | Late Precambrian | Gedinnian |
|
| Quadraditum tessella | Late Proterozoic | Early Cambrian |
|