Genus Achomosphaera
- Species total:
- 97
- Age range:
- 514 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Achomosphaera grallaeformis | Eocene | Late Miocene |
|
| Achomosphaera granulata | Quaternary | Holocene |
|
| Achomosphaera heteracantha | Miocene | Miocene |
|
| Achomosphaera heterostyla | Nd | Nd |
|
| Achomosphaera heterostylis | Cenomanian | Campanian |
|
| Achomosphaera hirundo | Early Cretaceous | Early Cretaceous |
|
| Achomosphaera hyperacantha | Late Campanian | Oligocene |
|
| Achomosphaera improcera | Late Paleocene | Middle Eocene |
|
| Achomosphaera linifera | Late Paleocene | Middle Ypresian |
|
| Achomosphaera longispinosa | Paleocene | Early Eocene |
|
| Achomosphaera malleofera | Late Cretaceous | Late Cretaceous |
|
| Achomosphaera mariannae | Late Cretaceous | Danian |
|
| Achomosphaera membraniphora | Middle Cretaceous | Middle Miocene |
|
| Achomosphaera microreticulata | Maastrichtian | Danian |
|
| Achomosphaera microtriaina | Early Ilerdian | Early Oligocene |
|
| Achomosphaera minor | Paleocene | Paleocene |
|
| Achomosphaera minuta | Eocene | Eocene |
|