Genus Baltisphaeridium
- Species total:
- 794
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Baltisphaeridium tribuliferum | Middle Jurassic | Late Jurassic |
|
| Baltisphaeridium jaculigerum | Middle Bathonian | Late Bathonian |
|
| Baltisphaeridium heteracanthum | Middle Bathonian | Late Bathonian |
|
| Baltisphaeridium sp. Volk.& Quat.,1977 | Late Jurassic | Early Cretaceous |
|
| Baltisphaeridium claviculorum | Early Oxfordian | Berriasian |
|
| Baltisphaeridium dictyophorum | Late Jurassic | Late Jurassic |
|
| Baltisphaeridium pseudhystrichodinium | Rauracian | Early Eocene |
|
| Baltisphaeridium aculigerum | Kimmeridgian | Kimmeridgian |
|
| Baltisphaeridium sarjeantii | Late Tithonian | Valanginian |
|
| Baltisphaeridium armatum | Cretaceous | Senonian |
|
| Baltisphaeridium ferox | Cretaceous | Danian |
|
| Baltisphaeridium spini-curvatum | Early Cretaceous | Early Cretaceous |
|
| Baltisphaeridium cretaceum | Neocomian | Aptian |
|
| Baltisphaeridium malleoferum | Cretaceous | Cretaceous |
|
| Baltisphaeridium texanum | Early Cretaceous | Early Cretaceous |
|
| Baltisphaeridium retitum | Hauterivian | Hauterivian |
|
| Baltisphaeridium type 446 | Hauterivian | Hauterivian |
|