Genus Baltisphaeridium
- Species total:
- 794
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Baltisphaeridium aspersilumiferum | Arenigian | Ashgillian |
|
| Baltisphaeridium ashdodense | Quaternary | Quaternary |
|
| Baltisphaeridium arrectum | Late Cambrian | Early Caradocian |
|
| Baltisphaeridium armatum | Cretaceous | Senonian |
|
| Baltisphaeridium areolatum | Llandoverian | Early Downtonian |
|
| Baltisphaeridium arenigum | Tremadocian | Arenigian |
|
| Baltisphaeridium arcuatum | Early Ordovician | Arenigian |
|
| Baltisphaeridium archaicum | Ordovician | Silurian |
|
| Baltisphaeridium arbusculiferum | Late Ordovician | Eifelian |
|
| Baltisphaeridium arboreum | Tremadocian | Ashgillian |
|
| Baltisphaeridium apiculatum | Early Ordovician | Early Ludlovian |
|
| Baltisphaeridium apertum | Tremadocian | Tremadocian |
|
| Baltisphaeridium apectatissimum | Tremadocian | Tremadocian |
|
| Baltisphaeridium antiquum | Late Cambrian | Late Cambrian |
|
| Baltisphaeridium annulatum | Early Ordovician | Early Ordovician |
|
| Baltisphaeridium annelieae | Early Paleozoic | Siedlce |
|
| Baltisphaeridium aniae | Silurian | Early Wenlockian |
|