Genus Callaiosphaeridium
- Species total:
- 7
- Age range:
- 230 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Callaiosphaeridium | Mesozoic | Cenozoic |
|
| Callaiosphaeridium asymmetricum | Early Cretaceous | Rupelian |
|
| Callaiosphaeridium falsificum | Late Berriasian | Early Barremian |
|
| Callaiosphaeridium sp | Late Ryazanian | Middle Albian |
|
| Callaiosphaeridium sp.A | Hauterivian | Hauterivian |
|
| Callaiosphaeridium sp.A Lond.,1990 | Hauterivian | Hauterivian |
|
| Callaiosphaeridium trycherium | Late Valanginian | Early Cenomanian |
|