Genus Hemibaltisphaeridium
- Species total:
- 2
- Age range:
- 570 - 370 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Hemibaltisphaeridium | Early Gothlandian | Early Devonian |
|
| Hemibaltisphaeridium dedosmuertos | Early Paleozoic | Gedinnian |
|