Genus Lacunosphaeridium
- Species total:
- 3
- Age range:
- 500 - 443.33 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Lacunosphaeridium | Ordovician | Ordovician |
|
| Lacunosphaeridium granosum | Late Caradocian | Late Caradocian |
|
| Lacunosphaeridium spinosum | Early Caradocian | Middle Caradocian |
|