Genus Paleosigma
- Species total:
- 3
- Age range:
- 456.67 - 408.33 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Paleosigma | Late Ordovician | Middle Gothlandian |
|
| Paleosigma silurica | Late Ordovician | Late Ordovician |
|
| Paleosigma undulosa | Middle Gothlandian | Middle Gothlandian |
|