Genus Baltisphaeridium
- Species total:
- 794
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Baltisphaeridium unilaterale | Cambrian | Cambrian |
|
| Baltisphaeridium unicuspidatum | Middle Cambrian | Middle Cambrian |
|
| Baltisphaeridium ungulatum | Early Ordovician | Middle Ordovician |
|
| Baltisphaeridium unguisum | Late Cambrian | Ashgillian |
|
| Baltisphaeridium undum | Early Ordovician | Early Ordovician |
|
| Baltisphaeridium uncinatum | Late Cambrian | Coblenzian |
|
| Baltisphaeridium type 446 | Hauterivian | Hauterivian |
|
| Baltisphaeridium type 429 | Barremian | Early Cenomanian |
|
| Baltisphaeridium type 427 | Late Albian | Late Albian |
|
| Baltisphaeridium type 425 | Late Albian | Early Cenomanian |
|
| Baltisphaeridium type 406 | Late Albian | Late Albian |
|
| Baltisphaeridium type 400 | Late Albian | Early Cenomanian |
|
| Baltisphaeridium tylacanthum | Early Ordovician | Early Ordovician |
|
| Baltisphaeridium twistringiense | Late Oligocene | Middle Miocene |
|
| Baltisphaeridium tuvinum | Wenlockian | Wenlockian |
|
| Baltisphaeridium turbinatum | Albian | Middle Turonian |
|
| Baltisphaeridium tuberosum | Paleozoic | Eifelian |
|