Genus Baltisphaeridium
- Species total:
- 794
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Baltisphaeridium apertum | Tremadocian | Tremadocian |
|
| Baltisphaeridium apiculatum | Early Ordovician | Early Ludlovian |
|
| Baltisphaeridium arboreum | Tremadocian | Ashgillian |
|
| Baltisphaeridium arbusculiferum | Late Ordovician | Eifelian |
|
| Baltisphaeridium archaicum | Ordovician | Silurian |
|
| Baltisphaeridium arcuatum | Early Ordovician | Arenigian |
|
| Baltisphaeridium arenigum | Tremadocian | Arenigian |
|
| Baltisphaeridium areolatum | Llandoverian | Early Downtonian |
|
| Baltisphaeridium armatum | Cretaceous | Senonian |
|
| Baltisphaeridium arrectum | Late Cambrian | Early Caradocian |
|
| Baltisphaeridium ashdodense | Quaternary | Quaternary |
|
| Baltisphaeridium aspersilumiferum | Arenigian | Ashgillian |
|
| Baltisphaeridium aspidistra | Silurian | Silurian |
|
| Baltisphaeridium astarte | Nd | Nd |
|
| Baltisphaeridium astartes | Silurian | Early Chattian |
|
| Baltisphaeridium asteroideum | Late Cretaceous | Late Cretaceous |
|
| Baltisphaeridium asturiae | Silurian | Early Gedinnian |
|