Genus Exilisphaeridium
- Species total:
- 3
- Age range:
- 570 - 336 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Exilisphaeridium | Late Devonian | Early Mississippian |
|
| Exilisphaeridium irregulare | Early Paleozoic | Early Paleozoic |
|
| Exilisphaeridium simplex | Late Devonian | Early Mississippian |
|