Genus Baltisphaeridium
- Species total:
- 794
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Baltisphaeridium borracherosum | Late Ordovician | Early Gedinnian |
|
| Baltisphaeridium brachyspinosum | Late Riphean | Cambrian |
|
| Baltisphaeridium bramkaense | Middle Ordovician | Ashgillian |
|
| Baltisphaeridium brazodesnudum | Late Ordovician | Gedinnian |
|
| Baltisphaeridium bresticum | Early Cambrian | Early Cambrian |
|
| Baltisphaeridium breve | Llanvirnian | Llanvirnian |
|
| Baltisphaeridium breviciliatum | Early Ordovician | Famennian |
|
| Baltisphaeridium brevifilicum | Early Ordovician | Silurian |
|
| Baltisphaeridium brevifurcatum | Late Cambrian | Downtonian |
|
| Baltisphaeridium brevispinosum | Early Paleozoic | Late Zechstein |
|
| Baltisphaeridium brevituberculatum | Proterozoic | Late Llandoverian |
|
| Baltisphaeridium britannum | Devonian | Mississippian |
|
| Baltisphaeridium bublitschenkoii | Middle Cambrian | Middle Cambrian |
|
| Baltisphaeridium bulbosum | Early Ordovician | Late Ordovician |
|
| Baltisphaeridium burmanniae | Llanvirnian | Llanvirnian |
|
| Baltisphaeridium bystrentos | Late Llanvirnian | Early Telychian |
|
| Baltisphaeridium calicispinae | Early Ordovician | Early Eifelian |
|